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Finding the Fourth Proportional to 192,341.67, 288,545.72 and 85,763.49

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Solution

The fourth proportional to 192,341.67, 288,545.72 and 85,763.49 is: 128,660.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,341.67 : 288,545.72 = 85,763.49 : x
  2. Step 2: Convert to fraction form
    192,341.67/288,545.72 = 85,763.49/x
  3. Step 3: Cross multiply
    192,341.67x = 288,545.72 × 85,763.49
  4. Step 4: Simplify right side
    192,341.67x = 24,746,687,542.95
  5. Step 5: Solve for x
    x = 24,746,687,542.95/192,341.67
  6. Step 6: Final answer
    x = 128,660.04

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1.5x scale

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.