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Finding the Fourth Proportional to 269,818.29, 404,656.97 and 80,227.61

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Solution

The fourth proportional to 269,818.29, 404,656.97 and 80,227.61 is: 120,320.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,818.29 : 404,656.97 = 80,227.61 : x
  2. Step 2: Convert to fraction form
    269,818.29/404,656.97 = 80,227.61/x
  3. Step 3: Cross multiply
    269,818.29x = 404,656.97 × 80,227.61
  4. Step 4: Simplify right side
    269,818.29x = 32,464,659,148.52
  5. Step 5: Solve for x
    x = 32,464,659,148.52/269,818.29
  6. Step 6: Final answer
    x = 120,320.45

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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.