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Finding the Fourth Proportional to 121,673.14, 167,892.35 and 67,951.31

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Solution

The fourth proportional to 121,673.14, 167,892.35 and 67,951.31 is: 93,763.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,673.14 : 167,892.35 = 67,951.31 : x
  2. Step 2: Convert to fraction form
    121,673.14/167,892.35 = 67,951.31/x
  3. Step 3: Cross multiply
    121,673.14x = 167,892.35 × 67,951.31
  4. Step 4: Simplify right side
    121,673.14x = 11,408,503,942.26
  5. Step 5: Solve for x
    x = 11,408,503,942.26/121,673.14
  6. Step 6: Final answer
    x = 93,763.54

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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.