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Finding the Fourth Proportional to 439,323.60, 659,163.96 and 158,863.44

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Solution

The fourth proportional to 439,323.60, 659,163.96 and 158,863.44 is: 238,359.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,323.60 : 659,163.96 = 158,863.44 : x
  2. Step 2: Convert to fraction form
    439,323.60/659,163.96 = 158,863.44/x
  3. Step 3: Cross multiply
    439,323.60x = 659,163.96 × 158,863.44
  4. Step 4: Simplify right side
    439,323.60x = 104,717,054,209.62
  5. Step 5: Solve for x
    x = 104,717,054,209.62/439,323.60
  6. Step 6: Final answer
    x = 238,359.73

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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.