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Finding the Fourth Proportional to 120,559.44, 166,369.20 and 66,843.96

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Solution

The fourth proportional to 120,559.44, 166,369.20 and 66,843.96 is: 92,243.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,559.44 : 166,369.20 = 66,843.96 : x
  2. Step 2: Convert to fraction form
    120,559.44/166,369.20 = 66,843.96/x
  3. Step 3: Cross multiply
    120,559.44x = 166,369.20 × 66,843.96
  4. Step 4: Simplify right side
    120,559.44x = 11,120,776,150.03
  5. Step 5: Solve for x
    x = 11,120,776,150.03/120,559.44
  6. Step 6: Final answer
    x = 92,243.10

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1.5x scale

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.