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Finding the Fourth Proportional to 198,906.94, 297,945.69 and 88,176.70

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Solution

The fourth proportional to 198,906.94, 297,945.69 and 88,176.70 is: 132,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,906.94 : 297,945.69 = 88,176.70 : x
  2. Step 2: Convert to fraction form
    198,906.94/297,945.69 = 88,176.70/x
  3. Step 3: Cross multiply
    198,906.94x = 297,945.69 × 88,176.70
  4. Step 4: Simplify right side
    198,906.94x = 26,271,867,723.42
  5. Step 5: Solve for x
    x = 26,271,867,723.42/198,906.94
  6. Step 6: Final answer
    x = 132,081.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.