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Finding the Fourth Proportional to 121,524.39, 167,711.99 and 67,819.77

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Solution

The fourth proportional to 121,524.39, 167,711.99 and 67,819.77 is: 93,595.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,524.39 : 167,711.99 = 67,819.77 : x
  2. Step 2: Convert to fraction form
    121,524.39/167,711.99 = 67,819.77/x
  3. Step 3: Cross multiply
    121,524.39x = 167,711.99 × 67,819.77
  4. Step 4: Simplify right side
    121,524.39x = 11,374,188,248.94
  5. Step 5: Solve for x
    x = 11,374,188,248.94/121,524.39
  6. Step 6: Final answer
    x = 93,595.93

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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.