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Finding the Fourth Proportional to 110,912.67, 166,366.58 and 47,774.79

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Solution

The fourth proportional to 110,912.67, 166,366.58 and 47,774.79 is: 71,661.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,912.67 : 166,366.58 = 47,774.79 : x
  2. Step 2: Convert to fraction form
    110,912.67/166,366.58 = 47,774.79/x
  3. Step 3: Cross multiply
    110,912.67x = 166,366.58 × 47,774.79
  4. Step 4: Simplify right side
    110,912.67x = 7,948,128,183.64
  5. Step 5: Solve for x
    x = 7,948,128,183.64/110,912.67
  6. Step 6: Final answer
    x = 71,661.14

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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.