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Finding the Fourth Proportional to 363,909.08, 502,187.89 and 202,760.68

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Solution

The fourth proportional to 363,909.08, 502,187.89 and 202,760.68 is: 279,806.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,909.08 : 502,187.89 = 202,760.68 : x
  2. Step 2: Convert to fraction form
    363,909.08/502,187.89 = 202,760.68/x
  3. Step 3: Cross multiply
    363,909.08x = 502,187.89 × 202,760.68
  4. Step 4: Simplify right side
    363,909.08x = 101,823,958,064.17
  5. Step 5: Solve for x
    x = 101,823,958,064.17/363,909.08
  6. Step 6: Final answer
    x = 279,806.04

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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.