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Finding the Fourth Proportional to 449,786.52, 674,796.51 and 134,243.42

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Solution

The fourth proportional to 449,786.52, 674,796.51 and 134,243.42 is: 201,399.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,786.52 : 674,796.51 = 134,243.42 : x
  2. Step 2: Convert to fraction form
    449,786.52/674,796.51 = 134,243.42/x
  3. Step 3: Cross multiply
    449,786.52x = 674,796.51 × 134,243.42
  4. Step 4: Simplify right side
    449,786.52x = 90,586,991,306.46
  5. Step 5: Solve for x
    x = 90,586,991,306.46/449,786.52
  6. Step 6: Final answer
    x = 201,399.97

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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.