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Finding the Fourth Proportional to 92,218.60, 138,327.90 and 82,887.40

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Solution

The fourth proportional to 92,218.60, 138,327.90 and 82,887.40 is: 124,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,218.60 : 138,327.90 = 82,887.40 : x
  2. Step 2: Convert to fraction form
    92,218.60/138,327.90 = 82,887.40/x
  3. Step 3: Cross multiply
    92,218.60x = 138,327.90 × 82,887.40
  4. Step 4: Simplify right side
    92,218.60x = 11,465,639,978.46
  5. Step 5: Solve for x
    x = 11,465,639,978.46/92,218.60
  6. Step 6: Final answer
    x = 124,331.10

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