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Finding the Fourth Proportional to 275,488.52, 413,218.20 and 88,485.44

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Solution

The fourth proportional to 275,488.52, 413,218.20 and 88,485.44 is: 132,723.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,488.52 : 413,218.20 = 88,485.44 : x
  2. Step 2: Convert to fraction form
    275,488.52/413,218.20 = 88,485.44/x
  3. Step 3: Cross multiply
    275,488.52x = 413,218.20 × 88,485.44
  4. Step 4: Simplify right side
    275,488.52x = 36,563,794,243.01
  5. Step 5: Solve for x
    x = 36,563,794,243.01/275,488.52
  6. Step 6: Final answer
    x = 132,723.48

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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.