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Finding the Fourth Proportional to 82,079.41, 123,119.10 and 19,749.91

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Solution

The fourth proportional to 82,079.41, 123,119.10 and 19,749.91 is: 29,624.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,079.41 : 123,119.10 = 19,749.91 : x
  2. Step 2: Convert to fraction form
    82,079.41/123,119.10 = 19,749.91/x
  3. Step 3: Cross multiply
    82,079.41x = 123,119.10 × 19,749.91
  4. Step 4: Simplify right side
    82,079.41x = 2,431,591,144.28
  5. Step 5: Solve for x
    x = 2,431,591,144.28/82,079.41
  6. Step 6: Final answer
    x = 29,624.86

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