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Finding the Fourth Proportional to 144,035.82, 198,769.14 and 80,369.82

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Solution

The fourth proportional to 144,035.82, 198,769.14 and 80,369.82 is: 110,910.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,035.82 : 198,769.14 = 80,369.82 : x
  2. Step 2: Convert to fraction form
    144,035.82/198,769.14 = 80,369.82/x
  3. Step 3: Cross multiply
    144,035.82x = 198,769.14 × 80,369.82
  4. Step 4: Simplify right side
    144,035.82x = 15,975,040,003.35
  5. Step 5: Solve for x
    x = 15,975,040,003.35/144,035.82
  6. Step 6: Final answer
    x = 110,910.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.