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Finding the Fourth Proportional to 270,287.82, 405,468.92 and 92,771.73

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Solution

The fourth proportional to 270,287.82, 405,468.92 and 92,771.73 is: 139,170.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,287.82 : 405,468.92 = 92,771.73 : x
  2. Step 2: Convert to fraction form
    270,287.82/405,468.92 = 92,771.73/x
  3. Step 3: Cross multiply
    270,287.82x = 405,468.92 × 92,771.73
  4. Step 4: Simplify right side
    270,287.82x = 37,616,053,401.56
  5. Step 5: Solve for x
    x = 37,616,053,401.56/270,287.82
  6. Step 6: Final answer
    x = 139,170.36

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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.