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Finding the Fourth Proportional to 110,729.20, 166,045.20 and 44,147.20

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Solution

The fourth proportional to 110,729.20, 166,045.20 and 44,147.20 is: 66,201.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,729.20 : 166,045.20 = 44,147.20 : x
  2. Step 2: Convert to fraction form
    110,729.20/166,045.20 = 44,147.20/x
  3. Step 3: Cross multiply
    110,729.20x = 166,045.20 × 44,147.20
  4. Step 4: Simplify right side
    110,729.20x = 7,330,430,653.44
  5. Step 5: Solve for x
    x = 7,330,430,653.44/110,729.20
  6. Step 6: Final answer
    x = 66,201.42

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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.