There are three trees in the town square. The tallest tree is 150 feet tall. The middle height tree is 2/3 the height of the tallest tree. The shortest tree is half the size of the middle tree.  How tall is the shortest tree? Let's think step by step and output the final answer after "####".
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Tallest Tree: <<150=150>>150 feet
Middle Tree:150(2/3)=300/3=100 feet
Shortest Tree:100/2=<<100/2=50>>50 feet
#### 50
There are three trees in the town square. The tallest tree is 150 feet tall. The middle height tree is 2/3 the height of the tallest tree. The shortest tree is half the size of the middle tree.  How tall is the shortest tree?
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