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Finding the Fourth Proportional to 111,447.74, 166,977.12 and 92,847.26

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Solution

The fourth proportional to 111,447.74, 166,977.12 and 92,847.26 is: 139,108.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,447.74 : 166,977.12 = 92,847.26 : x
  2. Step 2: Convert to fraction form
    111,447.74/166,977.12 = 92,847.26/x
  3. Step 3: Cross multiply
    111,447.74x = 166,977.12 × 92,847.26
  4. Step 4: Simplify right side
    111,447.74x = 15,503,368,074.69
  5. Step 5: Solve for x
    x = 15,503,368,074.69/111,447.74
  6. Step 6: Final answer
    x = 139,108.86

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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.