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Finding the Fourth Proportional to 54,105.70, 81,158.55 and 40,983.70

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Solution

The fourth proportional to 54,105.70, 81,158.55 and 40,983.70 is: 61,475.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,105.70 : 81,158.55 = 40,983.70 : x
  2. Step 2: Convert to fraction form
    54,105.70/81,158.55 = 40,983.70/x
  3. Step 3: Cross multiply
    54,105.70x = 81,158.55 × 40,983.70
  4. Step 4: Simplify right side
    54,105.70x = 3,326,177,665.64
  5. Step 5: Solve for x
    x = 3,326,177,665.64/54,105.70
  6. Step 6: Final answer
    x = 61,475.55

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