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Finding the Fourth Proportional to 79,821.92, 110,149.28 and 44,012.32

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Solution

The fourth proportional to 79,821.92, 110,149.28 and 44,012.32 is: 60,734.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,821.92 : 110,149.28 = 44,012.32 : x
  2. Step 2: Convert to fraction form
    79,821.92/110,149.28 = 44,012.32/x
  3. Step 3: Cross multiply
    79,821.92x = 110,149.28 × 44,012.32
  4. Step 4: Simplify right side
    79,821.92x = 4,847,925,359.13
  5. Step 5: Solve for x
    x = 4,847,925,359.13/79,821.92
  6. Step 6: Final answer
    x = 60,734.26

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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.