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Finding the Fourth Proportional to 51,591.40, 77,387.12 and 34,057.12

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Solution

The fourth proportional to 51,591.40, 77,387.12 and 34,057.12 is: 51,085.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,591.40 : 77,387.12 = 34,057.12 : x
  2. Step 2: Convert to fraction form
    51,591.40/77,387.12 = 34,057.12/x
  3. Step 3: Cross multiply
    51,591.40x = 77,387.12 × 34,057.12
  4. Step 4: Simplify right side
    51,591.40x = 2,635,582,432.29
  5. Step 5: Solve for x
    x = 2,635,582,432.29/51,591.40
  6. Step 6: Final answer
    x = 51,085.69

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