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Finding the Fourth Proportional to 111,377.60, 166,992.60 and 61,481.60

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Solution

The fourth proportional to 111,377.60, 166,992.60 and 61,481.60 is: 92,181.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,377.60 : 166,992.60 = 61,481.60 : x
  2. Step 2: Convert to fraction form
    111,377.60/166,992.60 = 61,481.60/x
  3. Step 3: Cross multiply
    111,377.60x = 166,992.60 × 61,481.60
  4. Step 4: Simplify right side
    111,377.60x = 10,266,972,236.16
  5. Step 5: Solve for x
    x = 10,266,972,236.16/111,377.60
  6. Step 6: Final answer
    x = 92,181.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.