I think that calculates to 2 years. But I doubt anybody can do it. If they can, the post a screen shot of your records.
Below is an example of someone taking 50K to 370K in 1 month: Second post contains a screen shot: http://www.elitetrader.com/vb/showthread.php?s=&threadid=69054&highlight=forex Anything is possible!
Very possible if you are willing to blow the 50K away. Just buy OTM options and start praying. If you want too be more realistic , 1 year with 50K in a prop account to 300 K
You need to be an elite trader though. If you put down 20K at a prop firm, you will most likely get 1,000,000 in buying power. Then it's as simple as making 2k a day after commissions.