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Finding the Fourth Proportional to 363,813.13, 502,077.65 and 202,668.29

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Solution

The fourth proportional to 363,813.13, 502,077.65 and 202,668.29 is: 279,690.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,813.13 : 502,077.65 = 202,668.29 : x
  2. Step 2: Convert to fraction form
    363,813.13/502,077.65 = 202,668.29/x
  3. Step 3: Cross multiply
    363,813.13x = 502,077.65 × 202,668.29
  4. Step 4: Simplify right side
    363,813.13x = 101,755,218,772.72
  5. Step 5: Solve for x
    x = 101,755,218,772.72/363,813.13
  6. Step 6: Final answer
    x = 279,690.89

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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.