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Finding the Fourth Proportional to 373,843.71, 515,913.17 and 204,079.05

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Solution

The fourth proportional to 373,843.71, 515,913.17 and 204,079.05 is: 281,633.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,843.71 : 515,913.17 = 204,079.05 : x
  2. Step 2: Convert to fraction form
    373,843.71/515,913.17 = 204,079.05/x
  3. Step 3: Cross multiply
    373,843.71x = 515,913.17 × 204,079.05
  4. Step 4: Simplify right side
    373,843.71x = 105,287,068,595.69
  5. Step 5: Solve for x
    x = 105,287,068,595.69/373,843.71
  6. Step 6: Final answer
    x = 281,633.92

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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.