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Finding the Fourth Proportional to 250,704.52, 376,377.42 and 215,391.80

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Solution

The fourth proportional to 250,704.52, 376,377.42 and 215,391.80 is: 323,363.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,704.52 : 376,377.42 = 215,391.80 : x
  2. Step 2: Convert to fraction form
    250,704.52/376,377.42 = 215,391.80/x
  3. Step 3: Cross multiply
    250,704.52x = 376,377.42 × 215,391.80
  4. Step 4: Simplify right side
    250,704.52x = 81,068,609,973.16
  5. Step 5: Solve for x
    x = 81,068,609,973.16/250,704.52
  6. Step 6: Final answer
    x = 323,363.18

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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.