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Finding the Fourth Proportional to 79,452.96, 109,645.85 and 43,642.97

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Solution

The fourth proportional to 79,452.96, 109,645.85 and 43,642.97 is: 60,227.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,452.96 : 109,645.85 = 43,642.97 : x
  2. Step 2: Convert to fraction form
    79,452.96/109,645.85 = 43,642.97/x
  3. Step 3: Cross multiply
    79,452.96x = 109,645.85 × 43,642.97
  4. Step 4: Simplify right side
    79,452.96x = 4,785,270,514.22
  5. Step 5: Solve for x
    x = 4,785,270,514.22/79,452.96
  6. Step 6: Final answer
    x = 60,227.72

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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.