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Finding the Fourth Proportional to 378,759.90, 568,227.32 and 112,514.52

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Solution

The fourth proportional to 378,759.90, 568,227.32 and 112,514.52 is: 168,797.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,759.90 : 568,227.32 = 112,514.52 : x
  2. Step 2: Convert to fraction form
    378,759.90/568,227.32 = 112,514.52/x
  3. Step 3: Cross multiply
    378,759.90x = 568,227.32 × 112,514.52
  4. Step 4: Simplify right side
    378,759.90x = 63,933,824,160.69
  5. Step 5: Solve for x
    x = 63,933,824,160.69/378,759.90
  6. Step 6: Final answer
    x = 168,797.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.