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Finding the Fourth Proportional to 264,503.05, 396,769.57 and 84,604.28

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Solution

The fourth proportional to 264,503.05, 396,769.57 and 84,604.28 is: 126,911.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,503.05 : 396,769.57 = 84,604.28 : x
  2. Step 2: Convert to fraction form
    264,503.05/396,769.57 = 84,604.28/x
  3. Step 3: Cross multiply
    264,503.05x = 396,769.57 × 84,604.28
  4. Step 4: Simplify right side
    264,503.05x = 33,568,401,388.89
  5. Step 5: Solve for x
    x = 33,568,401,388.89/264,503.05
  6. Step 6: Final answer
    x = 126,911.21

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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.