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Finding the Fourth Proportional to 54,276.70, 81,402.90 and 35,687.20

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Solution

The fourth proportional to 54,276.70, 81,402.90 and 35,687.20 is: 53,522.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,276.70 : 81,402.90 = 35,687.20 : x
  2. Step 2: Convert to fraction form
    54,276.70/81,402.90 = 35,687.20/x
  3. Step 3: Cross multiply
    54,276.70x = 81,402.90 × 35,687.20
  4. Step 4: Simplify right side
    54,276.70x = 2,905,041,572.88
  5. Step 5: Solve for x
    x = 2,905,041,572.88/54,276.70
  6. Step 6: Final answer
    x = 53,522.81

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