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Finding the Fourth Proportional to 264,548.48, 396,837.70 and 84,649.72

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Solution

The fourth proportional to 264,548.48, 396,837.70 and 84,649.72 is: 126,979.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,548.48 : 396,837.70 = 84,649.72 : x
  2. Step 2: Convert to fraction form
    264,548.48/396,837.70 = 84,649.72/x
  3. Step 3: Cross multiply
    264,548.48x = 396,837.70 × 84,649.72
  4. Step 4: Simplify right side
    264,548.48x = 33,592,200,190.44
  5. Step 5: Solve for x
    x = 33,592,200,190.44/264,548.48
  6. Step 6: Final answer
    x = 126,979.37

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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.