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Finding the Fourth Proportional to 317,157.98, 475,738.56 and 80,500.73

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Solution

The fourth proportional to 317,157.98, 475,738.56 and 80,500.73 is: 120,751.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,157.98 : 475,738.56 = 80,500.73 : x
  2. Step 2: Convert to fraction form
    317,157.98/475,738.56 = 80,500.73/x
  3. Step 3: Cross multiply
    317,157.98x = 475,738.56 × 80,500.73
  4. Step 4: Simplify right side
    317,157.98x = 38,297,301,369.15
  5. Step 5: Solve for x
    x = 38,297,301,369.15/317,157.98
  6. Step 6: Final answer
    x = 120,751.50

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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.