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Finding the Fourth Proportional to 111,241.60, 166,876.80 and 55,110.40

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Solution

The fourth proportional to 111,241.60, 166,876.80 and 55,110.40 is: 82,672.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,241.60 : 166,876.80 = 55,110.40 : x
  2. Step 2: Convert to fraction form
    111,241.60/166,876.80 = 55,110.40/x
  3. Step 3: Cross multiply
    111,241.60x = 166,876.80 × 55,110.40
  4. Step 4: Simplify right side
    111,241.60x = 9,196,647,198.72
  5. Step 5: Solve for x
    x = 9,196,647,198.72/111,241.60
  6. Step 6: Final answer
    x = 82,672.73

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1.5x scale

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.