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Finding the Fourth Proportional to 193,861.20, 290,830.20 and 162,910.80

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Solution

The fourth proportional to 193,861.20, 290,830.20 and 162,910.80 is: 244,398.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,861.20 : 290,830.20 = 162,910.80 : x
  2. Step 2: Convert to fraction form
    193,861.20/290,830.20 = 162,910.80/x
  3. Step 3: Cross multiply
    193,861.20x = 290,830.20 × 162,910.80
  4. Step 4: Simplify right side
    193,861.20x = 47,379,380,546.16
  5. Step 5: Solve for x
    x = 47,379,380,546.16/193,861.20
  6. Step 6: Final answer
    x = 244,398.47

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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.