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Finding the Fourth Proportional to 121,441.68, 167,593.46 and 67,728.96

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Solution

The fourth proportional to 121,441.68, 167,593.46 and 67,728.96 is: 93,468.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,441.68 : 167,593.46 = 67,728.96 : x
  2. Step 2: Convert to fraction form
    121,441.68/167,593.46 = 67,728.96/x
  3. Step 3: Cross multiply
    121,441.68x = 167,593.46 × 67,728.96
  4. Step 4: Simplify right side
    121,441.68x = 11,350,930,409.96
  5. Step 5: Solve for x
    x = 11,350,930,409.96/121,441.68
  6. Step 6: Final answer
    x = 93,468.16

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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.