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Finding the Fourth Proportional to 198,736.89, 274,258.89 and 108,094.97

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Solution

The fourth proportional to 198,736.89, 274,258.89 and 108,094.97 is: 149,172.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,736.89 : 274,258.89 = 108,094.97 : x
  2. Step 2: Convert to fraction form
    198,736.89/274,258.89 = 108,094.97/x
  3. Step 3: Cross multiply
    198,736.89x = 274,258.89 × 108,094.97
  4. Step 4: Simplify right side
    198,736.89x = 29,646,005,115.49
  5. Step 5: Solve for x
    x = 29,646,005,115.49/198,736.89
  6. Step 6: Final answer
    x = 149,172.13

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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.