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Finding the Fourth Proportional to 225,793.60, 311,590.56 and 125,189.44

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Solution

The fourth proportional to 225,793.60, 311,590.56 and 125,189.44 is: 172,758.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,793.60 : 311,590.56 = 125,189.44 : x
  2. Step 2: Convert to fraction form
    225,793.60/311,590.56 = 125,189.44/x
  3. Step 3: Cross multiply
    225,793.60x = 311,590.56 × 125,189.44
  4. Step 4: Simplify right side
    225,793.60x = 39,007,847,715.69
  5. Step 5: Solve for x
    x = 39,007,847,715.69/225,793.60
  6. Step 6: Final answer
    x = 172,758.87

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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.