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Finding the Fourth Proportional to 222,416.74, 306,957.18 and 126,937.90

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Solution

The fourth proportional to 222,416.74, 306,957.18 and 126,937.90 is: 175,186.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,416.74 : 306,957.18 = 126,937.90 : x
  2. Step 2: Convert to fraction form
    222,416.74/306,957.18 = 126,937.90/x
  3. Step 3: Cross multiply
    222,416.74x = 306,957.18 × 126,937.90
  4. Step 4: Simplify right side
    222,416.74x = 38,964,499,819.12
  5. Step 5: Solve for x
    x = 38,964,499,819.12/222,416.74
  6. Step 6: Final answer
    x = 175,186.90

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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.