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Finding the Fourth Proportional to 73,121.44, 100,909.92 and 44,855.68

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Solution

The fourth proportional to 73,121.44, 100,909.92 and 44,855.68 is: 61,902.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,121.44 : 100,909.92 = 44,855.68 : x
  2. Step 2: Convert to fraction form
    73,121.44/100,909.92 = 44,855.68/x
  3. Step 3: Cross multiply
    73,121.44x = 100,909.92 × 44,855.68
  4. Step 4: Simplify right side
    73,121.44x = 4,526,383,080.35
  5. Step 5: Solve for x
    x = 4,526,383,080.35/73,121.44
  6. Step 6: Final answer
    x = 61,902.27

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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.