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Finding the Fourth Proportional to 266,127.12, 399,263.58 and 132,846.48

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Solution

The fourth proportional to 266,127.12, 399,263.58 and 132,846.48 is: 199,306.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,127.12 : 399,263.58 = 132,846.48 : x
  2. Step 2: Convert to fraction form
    266,127.12/399,263.58 = 132,846.48/x
  3. Step 3: Cross multiply
    266,127.12x = 399,263.58 × 132,846.48
  4. Step 4: Simplify right side
    266,127.12x = 53,040,761,195.20
  5. Step 5: Solve for x
    x = 53,040,761,195.20/266,127.12
  6. Step 6: Final answer
    x = 199,306.11

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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.