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Finding the Fourth Proportional to 193,865.20, 290,836.20 and 162,914.80

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Solution

The fourth proportional to 193,865.20, 290,836.20 and 162,914.80 is: 244,404.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,865.20 : 290,836.20 = 162,914.80 : x
  2. Step 2: Convert to fraction form
    193,865.20/290,836.20 = 162,914.80/x
  3. Step 3: Cross multiply
    193,865.20x = 290,836.20 × 162,914.80
  4. Step 4: Simplify right side
    193,865.20x = 47,381,521,355.76
  5. Step 5: Solve for x
    x = 47,381,521,355.76/193,865.20
  6. Step 6: Final answer
    x = 244,404.47

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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.