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Finding the Fourth Proportional to 91,805.60, 137,708.40 and 88,306.40

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Solution

The fourth proportional to 91,805.60, 137,708.40 and 88,306.40 is: 132,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,805.60 : 137,708.40 = 88,306.40 : x
  2. Step 2: Convert to fraction form
    91,805.60/137,708.40 = 88,306.40/x
  3. Step 3: Cross multiply
    91,805.60x = 137,708.40 × 88,306.40
  4. Step 4: Simplify right side
    91,805.60x = 12,160,533,053.76
  5. Step 5: Solve for x
    x = 12,160,533,053.76/91,805.60
  6. Step 6: Final answer
    x = 132,459.60

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