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Finding the Fourth Proportional to 167,670.66, 231,387.04 and 91,190.48

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Solution

The fourth proportional to 167,670.66, 231,387.04 and 91,190.48 is: 125,843.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,670.66 : 231,387.04 = 91,190.48 : x
  2. Step 2: Convert to fraction form
    167,670.66/231,387.04 = 91,190.48/x
  3. Step 3: Cross multiply
    167,670.66x = 231,387.04 × 91,190.48
  4. Step 4: Simplify right side
    167,670.66x = 21,100,295,243.38
  5. Step 5: Solve for x
    x = 21,100,295,243.38/167,670.66
  6. Step 6: Final answer
    x = 125,843.69

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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.