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Finding the Fourth Proportional to 80,879.44, 111,612.12 and 44,085.97

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Solution

The fourth proportional to 80,879.44, 111,612.12 and 44,085.97 is: 60,837.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,879.44 : 111,612.12 = 44,085.97 : x
  2. Step 2: Convert to fraction form
    80,879.44/111,612.12 = 44,085.97/x
  3. Step 3: Cross multiply
    80,879.44x = 111,612.12 × 44,085.97
  4. Step 4: Simplify right side
    80,879.44x = 4,920,528,294.93
  5. Step 5: Solve for x
    x = 4,920,528,294.93/80,879.44
  6. Step 6: Final answer
    x = 60,837.82

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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.