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Finding the Fourth Proportional to 120,794.36, 166,690.56 and 67,082.72

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Solution

The fourth proportional to 120,794.36, 166,690.56 and 67,082.72 is: 92,571.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,794.36 : 166,690.56 = 67,082.72 : x
  2. Step 2: Convert to fraction form
    120,794.36/166,690.56 = 67,082.72/x
  3. Step 3: Cross multiply
    120,794.36x = 166,690.56 × 67,082.72
  4. Step 4: Simplify right side
    120,794.36x = 11,182,056,163.12
  5. Step 5: Solve for x
    x = 11,182,056,163.12/120,794.36
  6. Step 6: Final answer
    x = 92,571.01

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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.