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Finding the Fourth Proportional to 79,891.74, 110,230.94 and 48,839.18

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Solution

The fourth proportional to 79,891.74, 110,230.94 and 48,839.18 is: 67,386.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,891.74 : 110,230.94 = 48,839.18 : x
  2. Step 2: Convert to fraction form
    79,891.74/110,230.94 = 48,839.18/x
  3. Step 3: Cross multiply
    79,891.74x = 110,230.94 × 48,839.18
  4. Step 4: Simplify right side
    79,891.74x = 5,383,587,924.88
  5. Step 5: Solve for x
    x = 5,383,587,924.88/79,891.74
  6. Step 6: Final answer
    x = 67,386.04

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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.