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Finding the Fourth Proportional to 264,519.91, 396,647.70 and 84,581.92

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Solution

The fourth proportional to 264,519.91, 396,647.70 and 84,581.92 is: 126,830.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,519.91 : 396,647.70 = 84,581.92 : x
  2. Step 2: Convert to fraction form
    264,519.91/396,647.70 = 84,581.92/x
  3. Step 3: Cross multiply
    264,519.91x = 396,647.70 × 84,581.92
  4. Step 4: Simplify right side
    264,519.91x = 33,549,224,029.58
  5. Step 5: Solve for x
    x = 33,549,224,029.58/264,519.91
  6. Step 6: Final answer
    x = 126,830.62

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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.