Professionals, Is this Possible

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So I am trying to set my goal for weight loss BF% and Lean Muscle Mass by My Birthday.
Does the below chart seem obtainable to any of you.

Results would be 19lbs lost in 21 weeks
Reduction of 7% Body Fat
Only losing <3Lbs of lean muscle mass.


4/12/2012 194.10 21.1% 153.14
4/19/2012 193.09 20.73% 153.07
4/26/2012 192.09 20.35% 152.99
5/3/2012 191.08 19.98% 152.91
5/10/2012 190.08 19.61% 152.81
5/17/2012 189.07 19.23% 152.71
5/24/2012 188.07 18.86% 152.60
5/31/2012 187.06 18.48% 152.49
6/7/2012 186.06 18.11% 152.36
6/14/2012 185.05 17.74% 152.23
6/21/2012 184.05 17.36% 152.09
6/28/2012 183.04 16.99% 151.94
7/5/2012 182.04 16.62% 151.79
7/12/2012 181.03 16.24% 151.63
7/19/2012 180.03 15.87% 151.46
7/26/2012 179.02 15.49% 151.28
8/2/2012 178.02 15.12% 151.10
8/9/2012 177.01 14.75% 150.91
8/16/2012 176.01 14.37% 150.71
8/23/2012 175.00 14.0% 150.50

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