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Finding the Fourth Proportional to 373,808.60, 515,855.73 and 204,042.72

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Solution

The fourth proportional to 373,808.60, 515,855.73 and 204,042.72 is: 281,578.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,808.60 : 515,855.73 = 204,042.72 : x
  2. Step 2: Convert to fraction form
    373,808.60/515,855.73 = 204,042.72/x
  3. Step 3: Cross multiply
    373,808.60x = 515,855.73 × 204,042.72
  4. Step 4: Simplify right side
    373,808.60x = 105,256,606,276.79
  5. Step 5: Solve for x
    x = 105,256,606,276.79/373,808.60
  6. Step 6: Final answer
    x = 281,578.88

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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.