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Finding the Fourth Proportional to 73,402.44, 110,103.48 and 20,811.96

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Solution

The fourth proportional to 73,402.44, 110,103.48 and 20,811.96 is: 31,217.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,402.44 : 110,103.48 = 20,811.96 : x
  2. Step 2: Convert to fraction form
    73,402.44/110,103.48 = 20,811.96/x
  3. Step 3: Cross multiply
    73,402.44x = 110,103.48 × 20,811.96
  4. Step 4: Simplify right side
    73,402.44x = 2,291,469,221.62
  5. Step 5: Solve for x
    x = 2,291,469,221.62/73,402.44
  6. Step 6: Final answer
    x = 31,217.89

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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.