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Finding the Fourth Proportional to 82,761.52, 124,142.52 and 30,170.92

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Solution

The fourth proportional to 82,761.52, 124,142.52 and 30,170.92 is: 45,256.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,761.52 : 124,142.52 = 30,170.92 : x
  2. Step 2: Convert to fraction form
    82,761.52/124,142.52 = 30,170.92/x
  3. Step 3: Cross multiply
    82,761.52x = 124,142.52 × 30,170.92
  4. Step 4: Simplify right side
    82,761.52x = 3,745,494,039.52
  5. Step 5: Solve for x
    x = 3,745,494,039.52/82,761.52
  6. Step 6: Final answer
    x = 45,256.47

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