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Finding the Fourth Proportional to 363,805.70, 502,067.00 and 202,660.71

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Solution

The fourth proportional to 363,805.70, 502,067.00 and 202,660.71 is: 279,680.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,805.70 : 502,067.00 = 202,660.71 : x
  2. Step 2: Convert to fraction form
    363,805.70/502,067.00 = 202,660.71/x
  3. Step 3: Cross multiply
    363,805.70x = 502,067.00 × 202,660.71
  4. Step 4: Simplify right side
    363,805.70x = 101,749,253,674.27
  5. Step 5: Solve for x
    x = 101,749,253,674.27/363,805.70
  6. Step 6: Final answer
    x = 279,680.21

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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.