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Finding the Fourth Proportional to 227,171.62, 313,499.01 and 125,200.78

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Solution

The fourth proportional to 227,171.62, 313,499.01 and 125,200.78 is: 172,778.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,171.62 : 313,499.01 = 125,200.78 : x
  2. Step 2: Convert to fraction form
    227,171.62/313,499.01 = 125,200.78/x
  3. Step 3: Cross multiply
    227,171.62x = 313,499.01 × 125,200.78
  4. Step 4: Simplify right side
    227,171.62x = 39,250,320,581.23
  5. Step 5: Solve for x
    x = 39,250,320,581.23/227,171.62
  6. Step 6: Final answer
    x = 172,778.27

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1.5x scale

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.