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Finding the Fourth Proportional to 192,545.64, 288,819.26 and 126,404.28

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Solution

The fourth proportional to 192,545.64, 288,819.26 and 126,404.28 is: 189,606.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,545.64 : 288,819.26 = 126,404.28 : x
  2. Step 2: Convert to fraction form
    192,545.64/288,819.26 = 126,404.28/x
  3. Step 3: Cross multiply
    192,545.64x = 288,819.26 × 126,404.28
  4. Step 4: Simplify right side
    192,545.64x = 36,507,990,610.43
  5. Step 5: Solve for x
    x = 36,507,990,610.43/192,545.64
  6. Step 6: Final answer
    x = 189,606.95

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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.