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Finding the Fourth Proportional to 167,581.97, 231,264.62 and 91,101.21

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Solution

The fourth proportional to 167,581.97, 231,264.62 and 91,101.21 is: 125,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,581.97 : 231,264.62 = 91,101.21 : x
  2. Step 2: Convert to fraction form
    167,581.97/231,264.62 = 91,101.21/x
  3. Step 3: Cross multiply
    167,581.97x = 231,264.62 × 91,101.21
  4. Step 4: Simplify right side
    167,581.97x = 21,068,486,256.68
  5. Step 5: Solve for x
    x = 21,068,486,256.68/167,581.97
  6. Step 6: Final answer
    x = 125,720.49

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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.