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Finding the Fourth Proportional to 339,468.52, 468,781.68 and 218,891.92

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Solution

The fourth proportional to 339,468.52, 468,781.68 and 218,891.92 is: 302,274.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,468.52 : 468,781.68 = 218,891.92 : x
  2. Step 2: Convert to fraction form
    339,468.52/468,781.68 = 218,891.92/x
  3. Step 3: Cross multiply
    339,468.52x = 468,781.68 × 218,891.92
  4. Step 4: Simplify right side
    339,468.52x = 102,612,521,996.03
  5. Step 5: Solve for x
    x = 102,612,521,996.03/339,468.52
  6. Step 6: Final answer
    x = 302,274.04

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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.