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Finding the Fourth Proportional to 79,988.76, 110,385.32 and 44,179.68

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Solution

The fourth proportional to 79,988.76, 110,385.32 and 44,179.68 is: 60,968.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,988.76 : 110,385.32 = 44,179.68 : x
  2. Step 2: Convert to fraction form
    79,988.76/110,385.32 = 44,179.68/x
  3. Step 3: Cross multiply
    79,988.76x = 110,385.32 × 44,179.68
  4. Step 4: Simplify right side
    79,988.76x = 4,876,788,114.30
  5. Step 5: Solve for x
    x = 4,876,788,114.30/79,988.76
  6. Step 6: Final answer
    x = 60,968.42

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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.