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Finding the Fourth Proportional to 157,505.72, 217,353.06 and 85,887.14

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Solution

The fourth proportional to 157,505.72, 217,353.06 and 85,887.14 is: 118,521.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,505.72 : 217,353.06 = 85,887.14 : x
  2. Step 2: Convert to fraction form
    157,505.72/217,353.06 = 85,887.14/x
  3. Step 3: Cross multiply
    157,505.72x = 217,353.06 × 85,887.14
  4. Step 4: Simplify right side
    157,505.72x = 18,667,832,693.65
  5. Step 5: Solve for x
    x = 18,667,832,693.65/157,505.72
  6. Step 6: Final answer
    x = 118,521.62

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