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Finding the Fourth Proportional to 196,625.97, 271,366.92 and 111,755.79

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Solution

The fourth proportional to 196,625.97, 271,366.92 and 111,755.79 is: 154,236.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,625.97 : 271,366.92 = 111,755.79 : x
  2. Step 2: Convert to fraction form
    196,625.97/271,366.92 = 111,755.79/x
  3. Step 3: Cross multiply
    196,625.97x = 271,366.92 × 111,755.79
  4. Step 4: Simplify right side
    196,625.97x = 30,326,824,524.47
  5. Step 5: Solve for x
    x = 30,326,824,524.47/196,625.97
  6. Step 6: Final answer
    x = 154,236.11

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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.