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Finding the Fourth Proportional to 322,543.17, 445,112.82 and 177,356.61

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Solution

The fourth proportional to 322,543.17, 445,112.82 and 177,356.61 is: 244,753.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,543.17 : 445,112.82 = 177,356.61 : x
  2. Step 2: Convert to fraction form
    322,543.17/445,112.82 = 177,356.61/x
  3. Step 3: Cross multiply
    322,543.17x = 445,112.82 × 177,356.61
  4. Step 4: Simplify right side
    322,543.17x = 78,943,700,822.74
  5. Step 5: Solve for x
    x = 78,943,700,822.74/322,543.17
  6. Step 6: Final answer
    x = 244,753.91

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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.