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Finding the Fourth Proportional to 92,862.40, 128,067.60 and 74,951.68

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Solution

The fourth proportional to 92,862.40, 128,067.60 and 74,951.68 is: 103,366.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,862.40 : 128,067.60 = 74,951.68 : x
  2. Step 2: Convert to fraction form
    92,862.40/128,067.60 = 74,951.68/x
  3. Step 3: Cross multiply
    92,862.40x = 128,067.60 × 74,951.68
  4. Step 4: Simplify right side
    92,862.40x = 9,598,881,773.57
  5. Step 5: Solve for x
    x = 9,598,881,773.57/92,862.40
  6. Step 6: Final answer
    x = 103,366.72

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