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Finding the Fourth Proportional to 225,793.80, 338,690.70 and 113,819.40

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Solution

The fourth proportional to 225,793.80, 338,690.70 and 113,819.40 is: 170,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,793.80 : 338,690.70 = 113,819.40 : x
  2. Step 2: Convert to fraction form
    225,793.80/338,690.70 = 113,819.40/x
  3. Step 3: Cross multiply
    225,793.80x = 338,690.70 × 113,819.40
  4. Step 4: Simplify right side
    225,793.80x = 38,549,572,259.58
  5. Step 5: Solve for x
    x = 38,549,572,259.58/225,793.80
  6. Step 6: Final answer
    x = 170,729.10

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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.