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Finding the Fourth Proportional to 167,967.60, 231,791.81 and 91,487.58

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Solution

The fourth proportional to 167,967.60, 231,791.81 and 91,487.58 is: 126,250.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,967.60 : 231,791.81 = 91,487.58 : x
  2. Step 2: Convert to fraction form
    167,967.60/231,791.81 = 91,487.58/x
  3. Step 3: Cross multiply
    167,967.60x = 231,791.81 × 91,487.58
  4. Step 4: Simplify right side
    167,967.60x = 21,206,071,303.28
  5. Step 5: Solve for x
    x = 21,206,071,303.28/167,967.60
  6. Step 6: Final answer
    x = 126,250.96

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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.