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Finding the Fourth Proportional to 439,902.44, 659,847.90 and 107,481.32

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Solution

The fourth proportional to 439,902.44, 659,847.90 and 107,481.32 is: 161,220.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,902.44 : 659,847.90 = 107,481.32 : x
  2. Step 2: Convert to fraction form
    439,902.44/659,847.90 = 107,481.32/x
  3. Step 3: Cross multiply
    439,902.44x = 659,847.90 × 107,481.32
  4. Step 4: Simplify right side
    439,902.44x = 70,921,323,291.23
  5. Step 5: Solve for x
    x = 70,921,323,291.23/439,902.44
  6. Step 6: Final answer
    x = 161,220.57

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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.