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Finding the Fourth Proportional to 173,255.45, 259,986.84 and 74,759.45

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Solution

The fourth proportional to 173,255.45, 259,986.84 and 74,759.45 is: 112,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,255.45 : 259,986.84 = 74,759.45 : x
  2. Step 2: Convert to fraction form
    173,255.45/259,986.84 = 74,759.45/x
  3. Step 3: Cross multiply
    173,255.45x = 259,986.84 × 74,759.45
  4. Step 4: Simplify right side
    173,255.45x = 19,436,471,865.70
  5. Step 5: Solve for x
    x = 19,436,471,865.70/173,255.45
  6. Step 6: Final answer
    x = 112,183.90

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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.