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Finding the Fourth Proportional to 275,414.26, 413,121.40 and 88,556.98

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Solution

The fourth proportional to 275,414.26, 413,121.40 and 88,556.98 is: 132,835.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,414.26 : 413,121.40 = 88,556.98 : x
  2. Step 2: Convert to fraction form
    275,414.26/413,121.40 = 88,556.98/x
  3. Step 3: Cross multiply
    275,414.26x = 413,121.40 × 88,556.98
  4. Step 4: Simplify right side
    275,414.26x = 36,584,783,557.37
  5. Step 5: Solve for x
    x = 36,584,783,557.37/275,414.26
  6. Step 6: Final answer
    x = 132,835.47

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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.