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Finding the Fourth Proportional to 218,251.33, 301,162.46 and 122,755.97

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Solution

The fourth proportional to 218,251.33, 301,162.46 and 122,755.97 is: 169,389.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,251.33 : 301,162.46 = 122,755.97 : x
  2. Step 2: Convert to fraction form
    218,251.33/301,162.46 = 122,755.97/x
  3. Step 3: Cross multiply
    218,251.33x = 301,162.46 × 122,755.97
  4. Step 4: Simplify right side
    218,251.33x = 36,969,490,044.01
  5. Step 5: Solve for x
    x = 36,969,490,044.01/218,251.33
  6. Step 6: Final answer
    x = 169,389.53

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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.