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Finding the Fourth Proportional to 91,797.70, 137,777.55 and 54,310.90

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Solution

The fourth proportional to 91,797.70, 137,777.55 and 54,310.90 is: 81,514.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,797.70 : 137,777.55 = 54,310.90 : x
  2. Step 2: Convert to fraction form
    91,797.70/137,777.55 = 54,310.90/x
  3. Step 3: Cross multiply
    91,797.70x = 137,777.55 × 54,310.90
  4. Step 4: Simplify right side
    91,797.70x = 7,482,822,740.30
  5. Step 5: Solve for x
    x = 7,482,822,740.30/91,797.70
  6. Step 6: Final answer
    x = 81,514.27

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