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Finding the Fourth Proportional to 91,474.20, 137,211.30 and 54,052.20

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Solution

The fourth proportional to 91,474.20, 137,211.30 and 54,052.20 is: 81,078.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,474.20 : 137,211.30 = 54,052.20 : x
  2. Step 2: Convert to fraction form
    91,474.20/137,211.30 = 54,052.20/x
  3. Step 3: Cross multiply
    91,474.20x = 137,211.30 × 54,052.20
  4. Step 4: Simplify right side
    91,474.20x = 7,416,572,629.86
  5. Step 5: Solve for x
    x = 7,416,572,629.86/91,474.20
  6. Step 6: Final answer
    x = 81,078.30

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