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Finding the Fourth Proportional to 198,370.92, 297,694.62 and 87,502.44

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Solution

The fourth proportional to 198,370.92, 297,694.62 and 87,502.44 is: 131,314.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,370.92 : 297,694.62 = 87,502.44 : x
  2. Step 2: Convert to fraction form
    198,370.92/297,694.62 = 87,502.44/x
  3. Step 3: Cross multiply
    198,370.92x = 297,694.62 × 87,502.44
  4. Step 4: Simplify right side
    198,370.92x = 26,049,005,624.87
  5. Step 5: Solve for x
    x = 26,049,005,624.87/198,370.92
  6. Step 6: Final answer
    x = 131,314.64

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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.