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Finding the Fourth Proportional to 111,185.74, 166,809.78 and 44,672.56

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Solution

The fourth proportional to 111,185.74, 166,809.78 and 44,672.56 is: 67,021.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,185.74 : 166,809.78 = 44,672.56 : x
  2. Step 2: Convert to fraction form
    111,185.74/166,809.78 = 44,672.56/x
  3. Step 3: Cross multiply
    111,185.74x = 166,809.78 × 44,672.56
  4. Step 4: Simplify right side
    111,185.74x = 7,451,819,905.64
  5. Step 5: Solve for x
    x = 7,451,819,905.64/111,185.74
  6. Step 6: Final answer
    x = 67,021.36

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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.