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Finding the Fourth Proportional to 80,536.60, 120,848.10 and 33,794.20

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Solution

The fourth proportional to 80,536.60, 120,848.10 and 33,794.20 is: 50,709.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,536.60 : 120,848.10 = 33,794.20 : x
  2. Step 2: Convert to fraction form
    80,536.60/120,848.10 = 33,794.20/x
  3. Step 3: Cross multiply
    80,536.60x = 120,848.10 × 33,794.20
  4. Step 4: Simplify right side
    80,536.60x = 4,083,964,861.02
  5. Step 5: Solve for x
    x = 4,083,964,861.02/80,536.60
  6. Step 6: Final answer
    x = 50,709.43

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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.