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Finding the Fourth Proportional to 125,452.19, 188,182.53 and 45,449.90

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Solution

The fourth proportional to 125,452.19, 188,182.53 and 45,449.90 is: 68,176.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,452.19 : 188,182.53 = 45,449.90 : x
  2. Step 2: Convert to fraction form
    125,452.19/188,182.53 = 45,449.90/x
  3. Step 3: Cross multiply
    125,452.19x = 188,182.53 × 45,449.90
  4. Step 4: Simplify right side
    125,452.19x = 8,552,876,229.33
  5. Step 5: Solve for x
    x = 8,552,876,229.33/125,452.19
  6. Step 6: Final answer
    x = 68,176.38

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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.