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Finding the Fourth Proportional to 227,357.69, 313,748.40 and 125,380.24

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Solution

The fourth proportional to 227,357.69, 313,748.40 and 125,380.24 is: 173,021.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,357.69 : 313,748.40 = 125,380.24 : x
  2. Step 2: Convert to fraction form
    227,357.69/313,748.40 = 125,380.24/x
  3. Step 3: Cross multiply
    227,357.69x = 313,748.40 × 125,380.24
  4. Step 4: Simplify right side
    227,357.69x = 39,337,849,377.42
  5. Step 5: Solve for x
    x = 39,337,849,377.42/227,357.69
  6. Step 6: Final answer
    x = 173,021.86

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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.