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Finding the Fourth Proportional to 82,058.76, 123,345.09 and 54,158.13

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Solution

The fourth proportional to 82,058.76, 123,345.09 and 54,158.13 is: 81,406.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,058.76 : 123,345.09 = 54,158.13 : x
  2. Step 2: Convert to fraction form
    82,058.76/123,345.09 = 54,158.13/x
  3. Step 3: Cross multiply
    82,058.76x = 123,345.09 × 54,158.13
  4. Step 4: Simplify right side
    82,058.76x = 6,680,139,419.08
  5. Step 5: Solve for x
    x = 6,680,139,419.08/82,058.76
  6. Step 6: Final answer
    x = 81,406.78

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