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Finding the Fourth Proportional to 266,446.26, 367,721.37 and 145,605.87

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Solution

The fourth proportional to 266,446.26, 367,721.37 and 145,605.87 is: 200,950.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,446.26 : 367,721.37 = 145,605.87 : x
  2. Step 2: Convert to fraction form
    266,446.26/367,721.37 = 145,605.87/x
  3. Step 3: Cross multiply
    266,446.26x = 367,721.37 × 145,605.87
  4. Step 4: Simplify right side
    266,446.26x = 53,542,389,996.44
  5. Step 5: Solve for x
    x = 53,542,389,996.44/266,446.26
  6. Step 6: Final answer
    x = 200,950.05

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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.