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Finding the Fourth Proportional to 79,794.55, 110,112.14 and 43,981.75

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Solution

The fourth proportional to 79,794.55, 110,112.14 and 43,981.75 is: 60,692.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,794.55 : 110,112.14 = 43,981.75 : x
  2. Step 2: Convert to fraction form
    79,794.55/110,112.14 = 43,981.75/x
  3. Step 3: Cross multiply
    79,794.55x = 110,112.14 × 43,981.75
  4. Step 4: Simplify right side
    79,794.55x = 4,842,924,861.04
  5. Step 5: Solve for x
    x = 4,842,924,861.04/79,794.55
  6. Step 6: Final answer
    x = 60,692.43

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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.