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Finding the Fourth Proportional to 83,882.81, 125,785.33 and 31,278.17

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Solution

The fourth proportional to 83,882.81, 125,785.33 and 31,278.17 is: 46,902.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,882.81 : 125,785.33 = 31,278.17 : x
  2. Step 2: Convert to fraction form
    83,882.81/125,785.33 = 31,278.17/x
  3. Step 3: Cross multiply
    83,882.81x = 125,785.33 × 31,278.17
  4. Step 4: Simplify right side
    83,882.81x = 3,934,334,935.25
  5. Step 5: Solve for x
    x = 3,934,334,935.25/83,882.81
  6. Step 6: Final answer
    x = 46,902.76

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