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Finding the Fourth Proportional to 363,080.85, 501,013.18 and 201,909.84

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Solution

The fourth proportional to 363,080.85, 501,013.18 and 201,909.84 is: 278,614.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,080.85 : 501,013.18 = 201,909.84 : x
  2. Step 2: Convert to fraction form
    363,080.85/501,013.18 = 201,909.84/x
  3. Step 3: Cross multiply
    363,080.85x = 501,013.18 × 201,909.84
  4. Step 4: Simplify right side
    363,080.85x = 101,159,488,001.85
  5. Step 5: Solve for x
    x = 101,159,488,001.85/363,080.85
  6. Step 6: Final answer
    x = 278,614.22

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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.