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Finding the Fourth Proportional to 168,790, 253,147.34 and 50,445.96

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Solution

The fourth proportional to 168,790, 253,147.34 and 50,445.96 is: 75,657.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,790 : 253,147.34 = 50,445.96 : x
  2. Step 2: Convert to fraction form
    168,790/253,147.34 = 50,445.96/x
  3. Step 3: Cross multiply
    168,790x = 253,147.34 × 50,445.96
  4. Step 4: Simplify right side
    168,790x = 12,770,260,587.75
  5. Step 5: Solve for x
    x = 12,770,260,587.75/168,790
  6. Step 6: Final answer
    x = 75,657.68

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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.