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Finding the Fourth Proportional to 449,761.80, 674,901.90 and 169,480.20

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Solution

The fourth proportional to 449,761.80, 674,901.90 and 169,480.20 is: 254,317.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,761.80 : 674,901.90 = 169,480.20 : x
  2. Step 2: Convert to fraction form
    449,761.80/674,901.90 = 169,480.20/x
  3. Step 3: Cross multiply
    449,761.80x = 674,901.90 × 169,480.20
  4. Step 4: Simplify right side
    449,761.80x = 114,382,508,992.38
  5. Step 5: Solve for x
    x = 114,382,508,992.38/449,761.80
  6. Step 6: Final answer
    x = 254,317.97

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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.