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Finding the Fourth Proportional to 80,611.88, 120,918.10 and 24,452.47

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Solution

The fourth proportional to 80,611.88, 120,918.10 and 24,452.47 is: 36,678.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,611.88 : 120,918.10 = 24,452.47 : x
  2. Step 2: Convert to fraction form
    80,611.88/120,918.10 = 24,452.47/x
  3. Step 3: Cross multiply
    80,611.88x = 120,918.10 × 24,452.47
  4. Step 4: Simplify right side
    80,611.88x = 2,956,746,151.58
  5. Step 5: Solve for x
    x = 2,956,746,151.58/80,611.88
  6. Step 6: Final answer
    x = 36,678.79

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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.