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Finding the Fourth Proportional to 87,507.32, 120,769.17 and 53,538.44

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Solution

The fourth proportional to 87,507.32, 120,769.17 and 53,538.44 is: 73,888.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,507.32 : 120,769.17 = 53,538.44 : x
  2. Step 2: Convert to fraction form
    87,507.32/120,769.17 = 53,538.44/x
  3. Step 3: Cross multiply
    87,507.32x = 120,769.17 × 53,538.44
  4. Step 4: Simplify right side
    87,507.32x = 6,465,792,961.89
  5. Step 5: Solve for x
    x = 6,465,792,961.89/87,507.32
  6. Step 6: Final answer
    x = 73,888.60

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