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Finding the Fourth Proportional to 67,766.14, 101,612.31 and 53,815.78

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Solution

The fourth proportional to 67,766.14, 101,612.31 and 53,815.78 is: 80,694.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,766.14 : 101,612.31 = 53,815.78 : x
  2. Step 2: Convert to fraction form
    67,766.14/101,612.31 = 53,815.78/x
  3. Step 3: Cross multiply
    67,766.14x = 101,612.31 × 53,815.78
  4. Step 4: Simplify right side
    67,766.14x = 5,468,345,720.25
  5. Step 5: Solve for x
    x = 5,468,345,720.25/67,766.14
  6. Step 6: Final answer
    x = 80,694.37

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