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Finding the Fourth Proportional to 199,634.96, 275,484.44 and 108,972.88

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Solution

The fourth proportional to 199,634.96, 275,484.44 and 108,972.88 is: 150,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,634.96 : 275,484.44 = 108,972.88 : x
  2. Step 2: Convert to fraction form
    199,634.96/275,484.44 = 108,972.88/x
  3. Step 3: Cross multiply
    199,634.96x = 275,484.44 × 108,972.88
  4. Step 4: Simplify right side
    199,634.96x = 30,020,332,821.99
  5. Step 5: Solve for x
    x = 30,020,332,821.99/199,634.96
  6. Step 6: Final answer
    x = 150,376.13

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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.