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Finding the Fourth Proportional to 91,766.64, 137,302.12 and 54,346.80

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Solution

The fourth proportional to 91,766.64, 137,302.12 and 54,346.80 is: 81,314.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,766.64 : 137,302.12 = 54,346.80 : x
  2. Step 2: Convert to fraction form
    91,766.64/137,302.12 = 54,346.80/x
  3. Step 3: Cross multiply
    91,766.64x = 137,302.12 × 54,346.80
  4. Step 4: Simplify right side
    91,766.64x = 7,461,930,855.22
  5. Step 5: Solve for x
    x = 7,461,930,855.22/91,766.64
  6. Step 6: Final answer
    x = 81,314.20

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