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Finding the Fourth Proportional to 148,471.56, 204,891.48 and 88,072.56

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Solution

The fourth proportional to 148,471.56, 204,891.48 and 88,072.56 is: 121,540.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,471.56 : 204,891.48 = 88,072.56 : x
  2. Step 2: Convert to fraction form
    148,471.56/204,891.48 = 88,072.56/x
  3. Step 3: Cross multiply
    148,471.56x = 204,891.48 × 88,072.56
  4. Step 4: Simplify right side
    148,471.56x = 18,045,317,165.79
  5. Step 5: Solve for x
    x = 18,045,317,165.79/148,471.56
  6. Step 6: Final answer
    x = 121,540.56

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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.