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Finding the Fourth Proportional to 261,793.80, 392,690.70 and 244,168.20

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Solution

The fourth proportional to 261,793.80, 392,690.70 and 244,168.20 is: 366,252.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,793.80 : 392,690.70 = 244,168.20 : x
  2. Step 2: Convert to fraction form
    261,793.80/392,690.70 = 244,168.20/x
  3. Step 3: Cross multiply
    261,793.80x = 392,690.70 × 244,168.20
  4. Step 4: Simplify right side
    261,793.80x = 95,882,581,375.74
  5. Step 5: Solve for x
    x = 95,882,581,375.74/261,793.80
  6. Step 6: Final answer
    x = 366,252.30

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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.