What is the share of each heir from the deceased's inheritance of 300,0, given that her heirs are four full sisters, a full brother's son, and three full paternal uncles' sons?

If the deceased leaves behind only four full sisters and a full brother's son, then the four full sisters receive two-thirds, based on the Prophet's (peace be upon him) saying: "And Allah has revealed and made clear what is for your sisters, so He has assigned to them two-thirds." The remainder goes to the full brother's son by way of ta'sib (residuary heirship), based on the Prophet's (peace be upon him) saying: "Give the prescribed shares to those entitled to them, and what remains is for the nearest male." The full paternal cousins receive nothing because they are excluded by the full brother's son. Accordingly, the amount is divided into six shares: the four full sisters receive four shares (two-thirds), with each of them receiving one share, and the remaining two shares go to the full brother's son. If the amount is three hundred thousand, each full sister receives fifty thousand, and the full brother's son receives one hundred thousand.