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Finding the Fourth Proportional to 227,351.75, 313,738.65 and 125,377.20

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Solution

The fourth proportional to 227,351.75, 313,738.65 and 125,377.20 is: 173,016.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,351.75 : 313,738.65 = 125,377.20 : x
  2. Step 2: Convert to fraction form
    227,351.75/313,738.65 = 125,377.20/x
  3. Step 3: Cross multiply
    227,351.75x = 313,738.65 × 125,377.20
  4. Step 4: Simplify right side
    227,351.75x = 39,335,673,468.78
  5. Step 5: Solve for x
    x = 39,335,673,468.78/227,351.75
  6. Step 6: Final answer
    x = 173,016.81

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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.