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Finding the Fourth Proportional to 121,474.39, 167,634.54 and 67,759.37

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Solution

The fourth proportional to 121,474.39, 167,634.54 and 67,759.37 is: 93,507.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,474.39 : 167,634.54 = 67,759.37 : x
  2. Step 2: Convert to fraction form
    121,474.39/167,634.54 = 67,759.37/x
  3. Step 3: Cross multiply
    121,474.39x = 167,634.54 × 67,759.37
  4. Step 4: Simplify right side
    121,474.39x = 11,358,811,239.73
  5. Step 5: Solve for x
    x = 11,358,811,239.73/121,474.39
  6. Step 6: Final answer
    x = 93,507.87

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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.