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Finding the Fourth Proportional to 373,866.54, 515,933.20 and 204,100.66

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Solution

The fourth proportional to 373,866.54, 515,933.20 and 204,100.66 is: 281,657.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,866.54 : 515,933.20 = 204,100.66 : x
  2. Step 2: Convert to fraction form
    373,866.54/515,933.20 = 204,100.66/x
  3. Step 3: Cross multiply
    373,866.54x = 515,933.20 × 204,100.66
  4. Step 4: Simplify right side
    373,866.54x = 105,302,306,387.89
  5. Step 5: Solve for x
    x = 105,302,306,387.89/373,866.54
  6. Step 6: Final answer
    x = 281,657.48

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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.