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Finding the Fourth Proportional to 198,115.80, 296,736.30 and 163,123.80

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Solution

The fourth proportional to 198,115.80, 296,736.30 and 163,123.80 is: 244,325.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,115.80 : 296,736.30 = 163,123.80 : x
  2. Step 2: Convert to fraction form
    198,115.80/296,736.30 = 163,123.80/x
  3. Step 3: Cross multiply
    198,115.80x = 296,736.30 × 163,123.80
  4. Step 4: Simplify right side
    198,115.80x = 48,404,752,853.94
  5. Step 5: Solve for x
    x = 48,404,752,853.94/198,115.80
  6. Step 6: Final answer
    x = 244,325.56

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1.5x scale

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.