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Finding the Fourth Proportional to 322,694.89, 445,311.17 and 175,515.96

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Solution

The fourth proportional to 322,694.89, 445,311.17 and 175,515.96 is: 242,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,694.89 : 445,311.17 = 175,515.96 : x
  2. Step 2: Convert to fraction form
    322,694.89/445,311.17 = 175,515.96/x
  3. Step 3: Cross multiply
    322,694.89x = 445,311.17 × 175,515.96
  4. Step 4: Simplify right side
    322,694.89x = 78,159,218,951.80
  5. Step 5: Solve for x
    x = 78,159,218,951.80/322,694.89
  6. Step 6: Final answer
    x = 242,207.80

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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.