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Finding the Fourth Proportional to 111,704.60, 167,676.27 and 45,188.21

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Solution

The fourth proportional to 111,704.60, 167,676.27 and 45,188.21 is: 67,830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,704.60 : 167,676.27 = 45,188.21 : x
  2. Step 2: Convert to fraction form
    111,704.60/167,676.27 = 45,188.21/x
  3. Step 3: Cross multiply
    111,704.60x = 167,676.27 × 45,188.21
  4. Step 4: Simplify right side
    111,704.60x = 7,576,990,500.78
  5. Step 5: Solve for x
    x = 7,576,990,500.78/111,704.60
  6. Step 6: Final answer
    x = 67,830.60

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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.