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Finding the Fourth Proportional to 82,114.38, 123,171.57 and 19,784.88

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Solution

The fourth proportional to 82,114.38, 123,171.57 and 19,784.88 is: 29,677.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,114.38 : 123,171.57 = 19,784.88 : x
  2. Step 2: Convert to fraction form
    82,114.38/123,171.57 = 19,784.88/x
  3. Step 3: Cross multiply
    82,114.38x = 123,171.57 × 19,784.88
  4. Step 4: Simplify right side
    82,114.38x = 2,436,934,731.86
  5. Step 5: Solve for x
    x = 2,436,934,731.86/82,114.38
  6. Step 6: Final answer
    x = 29,677.32

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