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Finding the Fourth Proportional to 167,842.62, 231,628.50 and 91,364.50

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Solution

The fourth proportional to 167,842.62, 231,628.50 and 91,364.50 is: 126,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,842.62 : 231,628.50 = 91,364.50 : x
  2. Step 2: Convert to fraction form
    167,842.62/231,628.50 = 91,364.50/x
  3. Step 3: Cross multiply
    167,842.62x = 231,628.50 × 91,364.50
  4. Step 4: Simplify right side
    167,842.62x = 21,162,622,088.25
  5. Step 5: Solve for x
    x = 21,162,622,088.25/167,842.62
  6. Step 6: Final answer
    x = 126,086.10

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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.