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Finding the Fourth Proportional to 111,493.38, 167,286.96 and 69,408.69

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Solution

The fourth proportional to 111,493.38, 167,286.96 and 69,408.69 is: 104,142.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,493.38 : 167,286.96 = 69,408.69 : x
  2. Step 2: Convert to fraction form
    111,493.38/167,286.96 = 69,408.69/x
  3. Step 3: Cross multiply
    111,493.38x = 167,286.96 × 69,408.69
  4. Step 4: Simplify right side
    111,493.38x = 11,611,168,747.68
  5. Step 5: Solve for x
    x = 11,611,168,747.68/111,493.38
  6. Step 6: Final answer
    x = 104,142.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.