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Finding the Fourth Proportional to 120,844.80, 166,847.04 and 92,499.84

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Solution

The fourth proportional to 120,844.80, 166,847.04 and 92,499.84 is: 127,711.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,844.80 : 166,847.04 = 92,499.84 : x
  2. Step 2: Convert to fraction form
    120,844.80/166,847.04 = 92,499.84/x
  3. Step 3: Cross multiply
    120,844.80x = 166,847.04 × 92,499.84
  4. Step 4: Simplify right side
    120,844.80x = 15,433,324,504.47
  5. Step 5: Solve for x
    x = 15,433,324,504.47/120,844.80
  6. Step 6: Final answer
    x = 127,711.95

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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.