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Finding the Fourth Proportional to 168,469.46, 232,486.67 and 91,988.51

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Solution

The fourth proportional to 168,469.46, 232,486.67 and 91,988.51 is: 126,943.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,469.46 : 232,486.67 = 91,988.51 : x
  2. Step 2: Convert to fraction form
    168,469.46/232,486.67 = 91,988.51/x
  3. Step 3: Cross multiply
    168,469.46x = 232,486.67 × 91,988.51
  4. Step 4: Simplify right side
    168,469.46x = 21,386,102,743.44
  5. Step 5: Solve for x
    x = 21,386,102,743.44/168,469.46
  6. Step 6: Final answer
    x = 126,943.50

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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.