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Finding the Fourth Proportional to 80,149.36, 110,605.47 and 47,898.67

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Solution

The fourth proportional to 80,149.36, 110,605.47 and 47,898.67 is: 66,099.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,149.36 : 110,605.47 = 47,898.67 : x
  2. Step 2: Convert to fraction form
    80,149.36/110,605.47 = 47,898.67/x
  3. Step 3: Cross multiply
    80,149.36x = 110,605.47 × 47,898.67
  4. Step 4: Simplify right side
    80,149.36x = 5,297,854,907.72
  5. Step 5: Solve for x
    x = 5,297,854,907.72/80,149.36
  6. Step 6: Final answer
    x = 66,099.78

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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.