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Finding the Fourth Proportional to 107,351.20, 161,026.80 and 82,516.60

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Solution

The fourth proportional to 107,351.20, 161,026.80 and 82,516.60 is: 123,774.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,351.20 : 161,026.80 = 82,516.60 : x
  2. Step 2: Convert to fraction form
    107,351.20/161,026.80 = 82,516.60/x
  3. Step 3: Cross multiply
    107,351.20x = 161,026.80 × 82,516.60
  4. Step 4: Simplify right side
    107,351.20x = 13,287,384,044.88
  5. Step 5: Solve for x
    x = 13,287,384,044.88/107,351.20
  6. Step 6: Final answer
    x = 123,774.90

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