1/4 acre x 100 acres = 25 acres
208.71" = one side of 1 acre squared in feet
2 x 1/4 x 208.17" = 104.355" (2 x 1/4 acre long ends in feet)
200 x 208.71" = 41,742.000" (2 x 100 (acre long sides) x 208.71")
41,846.335" divided by 3 = 13,948.785 yards of fencing required