What is the ruling on buying and selling currencies online through Forex, if the company grants the investor financial leverage amounting to 200 times the original capital, despite the investor's unwillingness to obtain this loan?

It is not permissible to deal with a Forex broker who stipulates engagement in a forbidden transaction or uses forbidden leverage, as this is a stratagem for usury. Lawful alternatives for investing money are numerous, and some brokers adhere to Shariah guidelines.