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Finding the Fourth Proportional to 120,794.67, 166,704.35 and 67,079.68

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Solution

The fourth proportional to 120,794.67, 166,704.35 and 67,079.68 is: 92,574.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,794.67 : 166,704.35 = 67,079.68 : x
  2. Step 2: Convert to fraction form
    120,794.67/166,704.35 = 67,079.68/x
  3. Step 3: Cross multiply
    120,794.67x = 166,704.35 × 67,079.68
  4. Step 4: Simplify right side
    120,794.67x = 11,182,474,969.72
  5. Step 5: Solve for x
    x = 11,182,474,969.72/120,794.67
  6. Step 6: Final answer
    x = 92,574.24

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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.