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Finding the Fourth Proportional to 89,163.43, 133,706.26 and 33,720.55

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Solution

The fourth proportional to 89,163.43, 133,706.26 and 33,720.55 is: 50,566.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,163.43 : 133,706.26 = 33,720.55 : x
  2. Step 2: Convert to fraction form
    89,163.43/133,706.26 = 33,720.55/x
  3. Step 3: Cross multiply
    89,163.43x = 133,706.26 × 33,720.55
  4. Step 4: Simplify right side
    89,163.43x = 4,508,647,957.11
  5. Step 5: Solve for x
    x = 4,508,647,957.11/89,163.43
  6. Step 6: Final answer
    x = 50,566.11

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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.