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Finding the Fourth Proportional to 171,105.20, 256,366.20 and 146,027.60

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Solution

The fourth proportional to 171,105.20, 256,366.20 and 146,027.60 is: 218,792.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,105.20 : 256,366.20 = 146,027.60 : x
  2. Step 2: Convert to fraction form
    171,105.20/256,366.20 = 146,027.60/x
  3. Step 3: Cross multiply
    171,105.20x = 256,366.20 × 146,027.60
  4. Step 4: Simplify right side
    171,105.20x = 37,436,540,907.12
  5. Step 5: Solve for x
    x = 37,436,540,907.12/171,105.20
  6. Step 6: Final answer
    x = 218,792.54

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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.