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Finding the Fourth Proportional to 167,438.40, 251,164.92 and 83,238.90

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Solution

The fourth proportional to 167,438.40, 251,164.92 and 83,238.90 is: 124,861.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,438.40 : 251,164.92 = 83,238.90 : x
  2. Step 2: Convert to fraction form
    167,438.40/251,164.92 = 83,238.90/x
  3. Step 3: Cross multiply
    167,438.40x = 251,164.92 × 83,238.90
  4. Step 4: Simplify right side
    167,438.40x = 20,906,691,659.39
  5. Step 5: Solve for x
    x = 20,906,691,659.39/167,438.40
  6. Step 6: Final answer
    x = 124,861.99

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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.