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Finding the Fourth Proportional to 111,113.85, 166,764.11 and 104,107.56

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Solution

The fourth proportional to 111,113.85, 166,764.11 and 104,107.56 is: 156,248.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,113.85 : 166,764.11 = 104,107.56 : x
  2. Step 2: Convert to fraction form
    111,113.85/166,764.11 = 104,107.56/x
  3. Step 3: Cross multiply
    111,113.85x = 166,764.11 × 104,107.56
  4. Step 4: Simplify right side
    111,113.85x = 17,361,404,067.13
  5. Step 5: Solve for x
    x = 17,361,404,067.13/111,113.85
  6. Step 6: Final answer
    x = 156,248.79

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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.