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Finding the Fourth Proportional to 121,469.33, 167,635.18 and 67,021.23

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Solution

The fourth proportional to 121,469.33, 167,635.18 and 67,021.23 is: 92,493.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,469.33 : 167,635.18 = 67,021.23 : x
  2. Step 2: Convert to fraction form
    121,469.33/167,635.18 = 67,021.23/x
  3. Step 3: Cross multiply
    121,469.33x = 167,635.18 × 67,021.23
  4. Step 4: Simplify right side
    121,469.33x = 11,235,114,781.59
  5. Step 5: Solve for x
    x = 11,235,114,781.59/121,469.33
  6. Step 6: Final answer
    x = 92,493.43

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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.