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Finding the Fourth Proportional to 115,046.20, 158,732.76 and 67,311.28

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Solution

The fourth proportional to 115,046.20, 158,732.76 and 67,311.28 is: 92,871.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,046.20 : 158,732.76 = 67,311.28 : x
  2. Step 2: Convert to fraction form
    115,046.20/158,732.76 = 67,311.28/x
  3. Step 3: Cross multiply
    115,046.20x = 158,732.76 × 67,311.28
  4. Step 4: Simplify right side
    115,046.20x = 10,684,505,253.53
  5. Step 5: Solve for x
    x = 10,684,505,253.53/115,046.20
  6. Step 6: Final answer
    x = 92,871.43

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