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Finding the Fourth Proportional to 166,503, 229,769.46 and 91,049.88

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Solution

The fourth proportional to 166,503, 229,769.46 and 91,049.88 is: 125,646.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,503 : 229,769.46 = 91,049.88 : x
  2. Step 2: Convert to fraction form
    166,503/229,769.46 = 91,049.88/x
  3. Step 3: Cross multiply
    166,503x = 229,769.46 × 91,049.88
  4. Step 4: Simplify right side
    166,503x = 20,920,481,760.66
  5. Step 5: Solve for x
    x = 20,920,481,760.66/166,503
  6. Step 6: Final answer
    x = 125,646.28

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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.