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Finding the Fourth Proportional to 86,892.31, 130,344.38 and 27,732.44

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Solution

The fourth proportional to 86,892.31, 130,344.38 and 27,732.44 is: 41,600.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,892.31 : 130,344.38 = 27,732.44 : x
  2. Step 2: Convert to fraction form
    86,892.31/130,344.38 = 27,732.44/x
  3. Step 3: Cross multiply
    86,892.31x = 130,344.38 × 27,732.44
  4. Step 4: Simplify right side
    86,892.31x = 3,614,767,115.30
  5. Step 5: Solve for x
    x = 3,614,767,115.30/86,892.31
  6. Step 6: Final answer
    x = 41,600.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.