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Finding the Fourth Proportional to 266,047.56, 367,142.49 and 145,190.90

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Solution

The fourth proportional to 266,047.56, 367,142.49 and 145,190.90 is: 200,361.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,047.56 : 367,142.49 = 145,190.90 : x
  2. Step 2: Convert to fraction form
    266,047.56/367,142.49 = 145,190.90/x
  3. Step 3: Cross multiply
    266,047.56x = 367,142.49 × 145,190.90
  4. Step 4: Simplify right side
    266,047.56x = 53,305,749,469.20
  5. Step 5: Solve for x
    x = 53,305,749,469.20/266,047.56
  6. Step 6: Final answer
    x = 200,361.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.