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Finding the Fourth Proportional to 100,627.55, 150,982.62 and 53,229.97

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Solution

The fourth proportional to 100,627.55, 150,982.62 and 53,229.97 is: 79,866.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,627.55 : 150,982.62 = 53,229.97 : x
  2. Step 2: Convert to fraction form
    100,627.55/150,982.62 = 53,229.97/x
  3. Step 3: Cross multiply
    100,627.55x = 150,982.62 × 53,229.97
  4. Step 4: Simplify right side
    100,627.55x = 8,036,799,578.21
  5. Step 5: Solve for x
    x = 8,036,799,578.21/100,627.55
  6. Step 6: Final answer
    x = 79,866.79

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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.