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Finding the Fourth Proportional to 120,791.66, 166,698.04 and 67,076.89

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Solution

The fourth proportional to 120,791.66, 166,698.04 and 67,076.89 is: 92,569.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,791.66 : 166,698.04 = 67,076.89 : x
  2. Step 2: Convert to fraction form
    120,791.66/166,698.04 = 67,076.89/x
  3. Step 3: Cross multiply
    120,791.66x = 166,698.04 × 67,076.89
  4. Step 4: Simplify right side
    120,791.66x = 11,181,586,092.30
  5. Step 5: Solve for x
    x = 11,181,586,092.30/120,791.66
  6. Step 6: Final answer
    x = 92,569.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.