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Finding the Fourth Proportional to 80,181.56, 120,207.54 and 33,469.40

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Solution

The fourth proportional to 80,181.56, 120,207.54 and 33,469.40 is: 50,177.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,181.56 : 120,207.54 = 33,469.40 : x
  2. Step 2: Convert to fraction form
    80,181.56/120,207.54 = 33,469.40/x
  3. Step 3: Cross multiply
    80,181.56x = 120,207.54 × 33,469.40
  4. Step 4: Simplify right side
    80,181.56x = 4,023,274,239.28
  5. Step 5: Solve for x
    x = 4,023,274,239.28/80,181.56
  6. Step 6: Final answer
    x = 50,177.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.