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Finding the Fourth Proportional to 318,591.36, 478,182.42 and 160,930.44

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Solution

The fourth proportional to 318,591.36, 478,182.42 and 160,930.44 is: 241,544.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,591.36 : 478,182.42 = 160,930.44 : x
  2. Step 2: Convert to fraction form
    318,591.36/478,182.42 = 160,930.44/x
  3. Step 3: Cross multiply
    318,591.36x = 478,182.42 × 160,930.44
  4. Step 4: Simplify right side
    318,591.36x = 76,954,107,250.86
  5. Step 5: Solve for x
    x = 76,954,107,250.86/318,591.36
  6. Step 6: Final answer
    x = 241,544.87

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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.