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Finding the Fourth Proportional to 121,473.91, 167,634.25 and 67,757.54

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Solution

The fourth proportional to 121,473.91, 167,634.25 and 67,757.54 is: 93,505.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,473.91 : 167,634.25 = 67,757.54 : x
  2. Step 2: Convert to fraction form
    121,473.91/167,634.25 = 67,757.54/x
  3. Step 3: Cross multiply
    121,473.91x = 167,634.25 × 67,757.54
  4. Step 4: Simplify right side
    121,473.91x = 11,358,484,399.75
  5. Step 5: Solve for x
    x = 11,358,484,399.75/121,473.91
  6. Step 6: Final answer
    x = 93,505.55

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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.