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Finding the Fourth Proportional to 417,715.52, 626,638.56 and 137,168.96

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Solution

The fourth proportional to 417,715.52, 626,638.56 and 137,168.96 is: 205,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,715.52 : 626,638.56 = 137,168.96 : x
  2. Step 2: Convert to fraction form
    417,715.52/626,638.56 = 137,168.96/x
  3. Step 3: Cross multiply
    417,715.52x = 626,638.56 × 137,168.96
  4. Step 4: Simplify right side
    417,715.52x = 85,955,359,571.10
  5. Step 5: Solve for x
    x = 85,955,359,571.10/417,715.52
  6. Step 6: Final answer
    x = 205,774.88

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