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Finding the Fourth Proportional to 166,469.76, 229,744.08 and 91,029.60

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Solution

The fourth proportional to 166,469.76, 229,744.08 and 91,029.60 is: 125,629.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,469.76 : 229,744.08 = 91,029.60 : x
  2. Step 2: Convert to fraction form
    166,469.76/229,744.08 = 91,029.60/x
  3. Step 3: Cross multiply
    166,469.76x = 229,744.08 × 91,029.60
  4. Step 4: Simplify right side
    166,469.76x = 20,913,511,704.77
  5. Step 5: Solve for x
    x = 20,913,511,704.77/166,469.76
  6. Step 6: Final answer
    x = 125,629.49

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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.