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Finding the Fourth Proportional to 80,370.97, 120,556.45 and 27,058.49

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Solution

The fourth proportional to 80,370.97, 120,556.45 and 27,058.49 is: 40,587.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,370.97 : 120,556.45 = 27,058.49 : x
  2. Step 2: Convert to fraction form
    80,370.97/120,556.45 = 27,058.49/x
  3. Step 3: Cross multiply
    80,370.97x = 120,556.45 × 27,058.49
  4. Step 4: Simplify right side
    80,370.97x = 3,262,074,758.69
  5. Step 5: Solve for x
    x = 3,262,074,758.69/80,370.97
  6. Step 6: Final answer
    x = 40,587.73

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1.5x scale

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.