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Finding the Fourth Proportional to 79,719.49, 110,008.87 and 43,908.73

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Solution

The fourth proportional to 79,719.49, 110,008.87 and 43,908.73 is: 60,591.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,719.49 : 110,008.87 = 43,908.73 : x
  2. Step 2: Convert to fraction form
    79,719.49/110,008.87 = 43,908.73/x
  3. Step 3: Cross multiply
    79,719.49x = 110,008.87 × 43,908.73
  4. Step 4: Simplify right side
    79,719.49x = 4,830,349,770.44
  5. Step 5: Solve for x
    x = 4,830,349,770.44/79,719.49
  6. Step 6: Final answer
    x = 60,591.83

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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.