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Finding the Fourth Proportional to 166,841.73, 230,241.69 and 91,391.49

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Solution

The fourth proportional to 166,841.73, 230,241.69 and 91,391.49 is: 126,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,841.73 : 230,241.69 = 91,391.49 : x
  2. Step 2: Convert to fraction form
    166,841.73/230,241.69 = 91,391.49/x
  3. Step 3: Cross multiply
    166,841.73x = 230,241.69 × 91,391.49
  4. Step 4: Simplify right side
    166,841.73x = 21,042,131,109.22
  5. Step 5: Solve for x
    x = 21,042,131,109.22/166,841.73
  6. Step 6: Final answer
    x = 126,120.31

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1.5x scale

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.