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Finding the Fourth Proportional to 266,842.89, 400,262.13 and 108,960.62

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Solution

The fourth proportional to 266,842.89, 400,262.13 and 108,960.62 is: 163,440.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,842.89 : 400,262.13 = 108,960.62 : x
  2. Step 2: Convert to fraction form
    266,842.89/400,262.13 = 108,960.62/x
  3. Step 3: Cross multiply
    266,842.89x = 400,262.13 × 108,960.62
  4. Step 4: Simplify right side
    266,842.89x = 43,612,807,846.01
  5. Step 5: Solve for x
    x = 43,612,807,846.01/266,842.89
  6. Step 6: Final answer
    x = 163,440.02

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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.