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Finding the Fourth Proportional to 120,794.10, 166,697.49 and 67,082.58

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Solution

The fourth proportional to 120,794.10, 166,697.49 and 67,082.58 is: 92,574.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,794.10 : 166,697.49 = 67,082.58 : x
  2. Step 2: Convert to fraction form
    120,794.10/166,697.49 = 67,082.58/x
  3. Step 3: Cross multiply
    120,794.10x = 166,697.49 × 67,082.58
  4. Step 4: Simplify right side
    120,794.10x = 11,182,497,708.72
  5. Step 5: Solve for x
    x = 11,182,497,708.72/120,794.10
  6. Step 6: Final answer
    x = 92,574.87

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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.