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Finding the Fourth Proportional to 198,909.80, 299,453.51 and 181,491.56

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Solution

The fourth proportional to 198,909.80, 299,453.51 and 181,491.56 is: 273,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,909.80 : 299,453.51 = 181,491.56 : x
  2. Step 2: Convert to fraction form
    198,909.80/299,453.51 = 181,491.56/x
  3. Step 3: Cross multiply
    198,909.80x = 299,453.51 × 181,491.56
  4. Step 4: Simplify right side
    198,909.80x = 54,348,284,677.38
  5. Step 5: Solve for x
    x = 54,348,284,677.38/198,909.80
  6. Step 6: Final answer
    x = 273,230.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.