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Finding the Fourth Proportional to 363,131.75, 501,121.82 and 204,155.75

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Solution

The fourth proportional to 363,131.75, 501,121.82 and 204,155.75 is: 281,734.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,131.75 : 501,121.82 = 204,155.75 : x
  2. Step 2: Convert to fraction form
    363,131.75/501,121.82 = 204,155.75/x
  3. Step 3: Cross multiply
    363,131.75x = 501,121.82 × 204,155.75
  4. Step 4: Simplify right side
    363,131.75x = 102,306,901,003.47
  5. Step 5: Solve for x
    x = 102,306,901,003.47/363,131.75
  6. Step 6: Final answer
    x = 281,734.94

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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.