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Finding the Fourth Proportional to 121,268.97, 167,356.26 and 67,554

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Solution

The fourth proportional to 121,268.97, 167,356.26 and 67,554 is: 93,227.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,268.97 : 167,356.26 = 67,554 : x
  2. Step 2: Convert to fraction form
    121,268.97/167,356.26 = 67,554/x
  3. Step 3: Cross multiply
    121,268.97x = 167,356.26 × 67,554
  4. Step 4: Simplify right side
    121,268.97x = 11,305,584,788.04
  5. Step 5: Solve for x
    x = 11,305,584,788.04/121,268.97
  6. Step 6: Final answer
    x = 93,227.35

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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.