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Finding the Fourth Proportional to 91,103.20, 136,654.80 and 59,610.40

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Solution

The fourth proportional to 91,103.20, 136,654.80 and 59,610.40 is: 89,415.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,103.20 : 136,654.80 = 59,610.40 : x
  2. Step 2: Convert to fraction form
    91,103.20/136,654.80 = 59,610.40/x
  3. Step 3: Cross multiply
    91,103.20x = 136,654.80 × 59,610.40
  4. Step 4: Simplify right side
    91,103.20x = 8,146,047,289.92
  5. Step 5: Solve for x
    x = 8,146,047,289.92/91,103.20
  6. Step 6: Final answer
    x = 89,415.60

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