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Finding the Fourth Proportional to 80,993.96, 111,771.34 and 45,183.95

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Solution

The fourth proportional to 80,993.96, 111,771.34 and 45,183.95 is: 62,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,993.96 : 111,771.34 = 45,183.95 : x
  2. Step 2: Convert to fraction form
    80,993.96/111,771.34 = 45,183.95/x
  3. Step 3: Cross multiply
    80,993.96x = 111,771.34 × 45,183.95
  4. Step 4: Simplify right side
    80,993.96x = 5,050,270,637.99
  5. Step 5: Solve for x
    x = 5,050,270,637.99/80,993.96
  6. Step 6: Final answer
    x = 62,353.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.