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Finding the Fourth Proportional to 373,645.86, 515,627.01 and 203,882.82

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Solution

The fourth proportional to 373,645.86, 515,627.01 and 203,882.82 is: 281,355.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,645.86 : 515,627.01 = 203,882.82 : x
  2. Step 2: Convert to fraction form
    373,645.86/515,627.01 = 203,882.82/x
  3. Step 3: Cross multiply
    373,645.86x = 515,627.01 × 203,882.82
  4. Step 4: Simplify right side
    373,645.86x = 105,127,488,866.97
  5. Step 5: Solve for x
    x = 105,127,488,866.97/373,645.86
  6. Step 6: Final answer
    x = 281,355.96

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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.