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Finding the Fourth Proportional to 79,102.44, 109,189.14 and 48,910.92

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Solution

The fourth proportional to 79,102.44, 109,189.14 and 48,910.92 is: 67,514.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,102.44 : 109,189.14 = 48,910.92 : x
  2. Step 2: Convert to fraction form
    79,102.44/109,189.14 = 48,910.92/x
  3. Step 3: Cross multiply
    79,102.44x = 109,189.14 × 48,910.92
  4. Step 4: Simplify right side
    79,102.44x = 5,340,541,291.41
  5. Step 5: Solve for x
    x = 5,340,541,291.41/79,102.44
  6. Step 6: Final answer
    x = 67,514.24

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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.