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Finding the Fourth Proportional to 82,087.94, 123,138.90 and 25,913.03

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Solution

The fourth proportional to 82,087.94, 123,138.90 and 25,913.03 is: 38,871.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,087.94 : 123,138.90 = 25,913.03 : x
  2. Step 2: Convert to fraction form
    82,087.94/123,138.90 = 25,913.03/x
  3. Step 3: Cross multiply
    82,087.94x = 123,138.90 × 25,913.03
  4. Step 4: Simplify right side
    82,087.94x = 3,190,901,394.17
  5. Step 5: Solve for x
    x = 3,190,901,394.17/82,087.94
  6. Step 6: Final answer
    x = 38,871.74

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