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Finding the Fourth Proportional to 167,963.82, 251,954.91 and 68,109.18

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Solution

The fourth proportional to 167,963.82, 251,954.91 and 68,109.18 is: 102,167.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,963.82 : 251,954.91 = 68,109.18 : x
  2. Step 2: Convert to fraction form
    167,963.82/251,954.91 = 68,109.18/x
  3. Step 3: Cross multiply
    167,963.82x = 251,954.91 × 68,109.18
  4. Step 4: Simplify right side
    167,963.82x = 17,160,442,317.07
  5. Step 5: Solve for x
    x = 17,160,442,317.07/167,963.82
  6. Step 6: Final answer
    x = 102,167.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.