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Finding the Fourth Proportional to 168,168.72, 252,270.36 and 97,170.96

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Solution

The fourth proportional to 168,168.72, 252,270.36 and 97,170.96 is: 145,766.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,168.72 : 252,270.36 = 97,170.96 : x
  2. Step 2: Convert to fraction form
    168,168.72/252,270.36 = 97,170.96/x
  3. Step 3: Cross multiply
    168,168.72x = 252,270.36 × 97,170.96
  4. Step 4: Simplify right side
    168,168.72x = 24,513,353,060.75
  5. Step 5: Solve for x
    x = 24,513,353,060.75/168,168.72
  6. Step 6: Final answer
    x = 145,766.42

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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.