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Finding the Fourth Proportional to 266,205.88, 399,198.66 and 108,327.16

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Solution

The fourth proportional to 266,205.88, 399,198.66 and 108,327.16 is: 162,445.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,205.88 : 399,198.66 = 108,327.16 : x
  2. Step 2: Convert to fraction form
    266,205.88/399,198.66 = 108,327.16/x
  3. Step 3: Cross multiply
    266,205.88x = 399,198.66 × 108,327.16
  4. Step 4: Simplify right side
    266,205.88x = 43,244,057,113.61
  5. Step 5: Solve for x
    x = 43,244,057,113.61/266,205.88
  6. Step 6: Final answer
    x = 162,445.91

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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.