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Finding the Fourth Proportional to 266,791.74, 400,188.24 and 109,020.18

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Solution

The fourth proportional to 266,791.74, 400,188.24 and 109,020.18 is: 163,530.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,791.74 : 400,188.24 = 109,020.18 : x
  2. Step 2: Convert to fraction form
    266,791.74/400,188.24 = 109,020.18/x
  3. Step 3: Cross multiply
    266,791.74x = 400,188.24 × 109,020.18
  4. Step 4: Simplify right side
    266,791.74x = 43,628,593,958.68
  5. Step 5: Solve for x
    x = 43,628,593,958.68/266,791.74
  6. Step 6: Final answer
    x = 163,530.53

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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.