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Finding the Fourth Proportional to 125,414.80, 188,122.56 and 50,512.48

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Solution

The fourth proportional to 125,414.80, 188,122.56 and 50,512.48 is: 75,768.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,414.80 : 188,122.56 = 50,512.48 : x
  2. Step 2: Convert to fraction form
    125,414.80/188,122.56 = 50,512.48/x
  3. Step 3: Cross multiply
    125,414.80x = 188,122.56 × 50,512.48
  4. Step 4: Simplify right side
    125,414.80x = 9,502,537,049.55
  5. Step 5: Solve for x
    x = 9,502,537,049.55/125,414.80
  6. Step 6: Final answer
    x = 75,768.86

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1.5x scale

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.