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Finding the Fourth Proportional to 121,086.26, 167,099.86 and 67,373.54

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Solution

The fourth proportional to 121,086.26, 167,099.86 and 67,373.54 is: 92,975.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,086.26 : 167,099.86 = 67,373.54 : x
  2. Step 2: Convert to fraction form
    121,086.26/167,099.86 = 67,373.54/x
  3. Step 3: Cross multiply
    121,086.26x = 167,099.86 × 67,373.54
  4. Step 4: Simplify right side
    121,086.26x = 11,258,109,101.70
  5. Step 5: Solve for x
    x = 11,258,109,101.70/121,086.26
  6. Step 6: Final answer
    x = 92,975.94

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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.