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Finding the Fourth Proportional to 73,306.74, 109,962.15 and 25,915.14

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Solution

The fourth proportional to 73,306.74, 109,962.15 and 25,915.14 is: 38,873.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,306.74 : 109,962.15 = 25,915.14 : x
  2. Step 2: Convert to fraction form
    73,306.74/109,962.15 = 25,915.14/x
  3. Step 3: Cross multiply
    73,306.74x = 109,962.15 × 25,915.14
  4. Step 4: Simplify right side
    73,306.74x = 2,849,684,511.95
  5. Step 5: Solve for x
    x = 2,849,684,511.95/73,306.74
  6. Step 6: Final answer
    x = 38,873.43

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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.