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Finding the Fourth Proportional to 173,691.60, 260,472.60 and 68,488.80

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Solution

The fourth proportional to 173,691.60, 260,472.60 and 68,488.80 is: 102,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,691.60 : 260,472.60 = 68,488.80 : x
  2. Step 2: Convert to fraction form
    173,691.60/260,472.60 = 68,488.80/x
  3. Step 3: Cross multiply
    173,691.60x = 260,472.60 × 68,488.80
  4. Step 4: Simplify right side
    173,691.60x = 17,839,455,806.88
  5. Step 5: Solve for x
    x = 17,839,455,806.88/173,691.60
  6. Step 6: Final answer
    x = 102,707.65

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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.