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Finding the Fourth Proportional to 223,819.60, 335,729.40 and 124,286.80

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Solution

The fourth proportional to 223,819.60, 335,729.40 and 124,286.80 is: 186,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,819.60 : 335,729.40 = 124,286.80 : x
  2. Step 2: Convert to fraction form
    223,819.60/335,729.40 = 124,286.80/x
  3. Step 3: Cross multiply
    223,819.60x = 335,729.40 × 124,286.80
  4. Step 4: Simplify right side
    223,819.60x = 41,726,732,791.92
  5. Step 5: Solve for x
    x = 41,726,732,791.92/223,819.60
  6. Step 6: Final answer
    x = 186,430.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.