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Finding the Fourth Proportional to 168,911.14, 252,861.59 and 102,149.22

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Solution

The fourth proportional to 168,911.14, 252,861.59 and 102,149.22 is: 152,918.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,911.14 : 252,861.59 = 102,149.22 : x
  2. Step 2: Convert to fraction form
    168,911.14/252,861.59 = 102,149.22/x
  3. Step 3: Cross multiply
    168,911.14x = 252,861.59 × 102,149.22
  4. Step 4: Simplify right side
    168,911.14x = 25,829,614,186.46
  5. Step 5: Solve for x
    x = 25,829,614,186.46/168,911.14
  6. Step 6: Final answer
    x = 152,918.36

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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.