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Finding the Fourth Proportional to 222,400.92, 306,908.88 and 126,892.20

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Solution

The fourth proportional to 222,400.92, 306,908.88 and 126,892.20 is: 175,108.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,400.92 : 306,908.88 = 126,892.20 : x
  2. Step 2: Convert to fraction form
    222,400.92/306,908.88 = 126,892.20/x
  3. Step 3: Cross multiply
    222,400.92x = 306,908.88 × 126,892.20
  4. Step 4: Simplify right side
    222,400.92x = 38,944,342,982.74
  5. Step 5: Solve for x
    x = 38,944,342,982.74/222,400.92
  6. Step 6: Final answer
    x = 175,108.73

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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.