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Finding the Fourth Proportional to 221,876.86, 305,545.08 and 192,793

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Solution

The fourth proportional to 221,876.86, 305,545.08 and 192,793 is: 265,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,876.86 : 305,545.08 = 192,793 : x
  2. Step 2: Convert to fraction form
    221,876.86/305,545.08 = 192,793/x
  3. Step 3: Cross multiply
    221,876.86x = 305,545.08 × 192,793
  4. Step 4: Simplify right side
    221,876.86x = 58,906,952,608.44
  5. Step 5: Solve for x
    x = 58,906,952,608.44/221,876.86
  6. Step 6: Final answer
    x = 265,493.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.