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Finding the Fourth Proportional to 169,190.57, 253,817.90 and 67,996.49

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Solution

The fourth proportional to 169,190.57, 253,817.90 and 67,996.49 is: 102,007.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,190.57 : 253,817.90 = 67,996.49 : x
  2. Step 2: Convert to fraction form
    169,190.57/253,817.90 = 67,996.49/x
  3. Step 3: Cross multiply
    169,190.57x = 253,817.90 × 67,996.49
  4. Step 4: Simplify right side
    169,190.57x = 17,258,726,041.43
  5. Step 5: Solve for x
    x = 17,258,726,041.43/169,190.57
  6. Step 6: Final answer
    x = 102,007.61

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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.