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Finding the Fourth Proportional to 79,991.91, 110,385.90 and 44,181.18

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Solution

The fourth proportional to 79,991.91, 110,385.90 and 44,181.18 is: 60,968.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,991.91 : 110,385.90 = 44,181.18 : x
  2. Step 2: Convert to fraction form
    79,991.91/110,385.90 = 44,181.18/x
  3. Step 3: Cross multiply
    79,991.91x = 110,385.90 × 44,181.18
  4. Step 4: Simplify right side
    79,991.91x = 4,876,979,317.36
  5. Step 5: Solve for x
    x = 4,876,979,317.36/79,991.91
  6. Step 6: Final answer
    x = 60,968.41

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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.