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Finding the Fourth Proportional to 167,670.60, 231,386.39 and 91,190.60

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Solution

The fourth proportional to 167,670.60, 231,386.39 and 91,190.60 is: 125,843.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,670.60 : 231,386.39 = 91,190.60 : x
  2. Step 2: Convert to fraction form
    167,670.60/231,386.39 = 91,190.60/x
  3. Step 3: Cross multiply
    167,670.60x = 231,386.39 × 91,190.60
  4. Step 4: Simplify right side
    167,670.60x = 21,100,263,735.93
  5. Step 5: Solve for x
    x = 21,100,263,735.93/167,670.60
  6. Step 6: Final answer
    x = 125,843.55

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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.