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Finding the Fourth Proportional to 121,496.22, 167,664.26 and 67,781.27

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Solution

The fourth proportional to 121,496.22, 167,664.26 and 67,781.27 is: 93,537.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,496.22 : 167,664.26 = 67,781.27 : x
  2. Step 2: Convert to fraction form
    121,496.22/167,664.26 = 67,781.27/x
  3. Step 3: Cross multiply
    121,496.22x = 167,664.26 × 67,781.27
  4. Step 4: Simplify right side
    121,496.22x = 11,364,497,065.02
  5. Step 5: Solve for x
    x = 11,364,497,065.02/121,496.22
  6. Step 6: Final answer
    x = 93,537.87

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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.