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Finding the Fourth Proportional to 89,063.76, 133,604.42 and 25,884.43

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Solution

The fourth proportional to 89,063.76, 133,604.42 and 25,884.43 is: 38,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,063.76 : 133,604.42 = 25,884.43 : x
  2. Step 2: Convert to fraction form
    89,063.76/133,604.42 = 25,884.43/x
  3. Step 3: Cross multiply
    89,063.76x = 133,604.42 × 25,884.43
  4. Step 4: Simplify right side
    89,063.76x = 3,458,274,257.18
  5. Step 5: Solve for x
    x = 3,458,274,257.18/89,063.76
  6. Step 6: Final answer
    x = 38,829.20

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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.