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Finding the Fourth Proportional to 363,806.20, 502,067.68 and 202,661.22

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Solution

The fourth proportional to 363,806.20, 502,067.68 and 202,661.22 is: 279,680.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,806.20 : 502,067.68 = 202,661.22 : x
  2. Step 2: Convert to fraction form
    363,806.20/502,067.68 = 202,661.22/x
  3. Step 3: Cross multiply
    363,806.20x = 502,067.68 × 202,661.22
  4. Step 4: Simplify right side
    363,806.20x = 101,749,648,551.37
  5. Step 5: Solve for x
    x = 101,749,648,551.37/363,806.20
  6. Step 6: Final answer
    x = 279,680.91

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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.