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Finding the Fourth Proportional to 100,819.75, 151,229.63 and 35,155.75

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Solution

The fourth proportional to 100,819.75, 151,229.63 and 35,155.75 is: 52,733.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,819.75 : 151,229.63 = 35,155.75 : x
  2. Step 2: Convert to fraction form
    100,819.75/151,229.63 = 35,155.75/x
  3. Step 3: Cross multiply
    100,819.75x = 151,229.63 × 35,155.75
  4. Step 4: Simplify right side
    100,819.75x = 5,316,591,064.87
  5. Step 5: Solve for x
    x = 5,316,591,064.87/100,819.75
  6. Step 6: Final answer
    x = 52,733.63

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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.