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Finding the Fourth Proportional to 266,422.69, 399,791.66 and 98,061.27

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Solution

The fourth proportional to 266,422.69, 399,791.66 and 98,061.27 is: 147,149.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,422.69 : 399,791.66 = 98,061.27 : x
  2. Step 2: Convert to fraction form
    266,422.69/399,791.66 = 98,061.27/x
  3. Step 3: Cross multiply
    266,422.69x = 399,791.66 × 98,061.27
  4. Step 4: Simplify right side
    266,422.69x = 39,204,077,915.01
  5. Step 5: Solve for x
    x = 39,204,077,915.01/266,422.69
  6. Step 6: Final answer
    x = 147,149.92

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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.