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Finding the Fourth Proportional to 81,494.91, 122,253.44 and 25,324.52

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Solution

The fourth proportional to 81,494.91, 122,253.44 and 25,324.52 is: 37,990.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,494.91 : 122,253.44 = 25,324.52 : x
  2. Step 2: Convert to fraction form
    81,494.91/122,253.44 = 25,324.52/x
  3. Step 3: Cross multiply
    81,494.91x = 122,253.44 × 25,324.52
  4. Step 4: Simplify right side
    81,494.91x = 3,096,008,948.46
  5. Step 5: Solve for x
    x = 3,096,008,948.46/81,494.91
  6. Step 6: Final answer
    x = 37,990.21

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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.