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Finding the Fourth Proportional to 222,416.49, 306,956.71 and 126,937.47

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Solution

The fourth proportional to 222,416.49, 306,956.71 and 126,937.47 is: 175,186.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,416.49 : 306,956.71 = 126,937.47 : x
  2. Step 2: Convert to fraction form
    222,416.49/306,956.71 = 126,937.47/x
  3. Step 3: Cross multiply
    222,416.49x = 306,956.71 × 126,937.47
  4. Step 4: Simplify right side
    222,416.49x = 38,964,306,460.48
  5. Step 5: Solve for x
    x = 38,964,306,460.48/222,416.49
  6. Step 6: Final answer
    x = 175,186.23

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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.