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Finding the Fourth Proportional to 168,443.70, 252,669.60 and 50,118.90

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Solution

The fourth proportional to 168,443.70, 252,669.60 and 50,118.90 is: 75,179.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,443.70 : 252,669.60 = 50,118.90 : x
  2. Step 2: Convert to fraction form
    168,443.70/252,669.60 = 50,118.90/x
  3. Step 3: Cross multiply
    168,443.70x = 252,669.60 × 50,118.90
  4. Step 4: Simplify right side
    168,443.70x = 12,663,522,415.44
  5. Step 5: Solve for x
    x = 12,663,522,415.44/168,443.70
  6. Step 6: Final answer
    x = 75,179.56

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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.