First find the height of the bone meal plant: 36 inches * 125% = <<36*125*.01=45>>45 inches

Then find the height of the cow manure plant: 45 inches * 200% = <<45*200*.01=90>>90 inches

# Answer

90
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Jenny wants to know whether bone meal or cow manure makes better fertilizer. The control plant with no fertilizer grows 36 inches high, the plant with bone meal grows to 125% of the height of the control plant, and the cow manure plant grows to 200% of the height of the bone meal plant. How tall is the cow manure plant in inches?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
90
Jenny wants to know whether bone meal or cow manure makes better fertilizer. The control plant with no fertilizer grows 36 inches high, the plant with bone meal grows to 125% of the height of the control plant, and the cow manure plant grows to 200% of the height of the bone meal plant. How tall is the cow manure plant in inches?
train