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Finding the Fourth Proportional to 324,628.80, 486,967.66 and 96,906.43

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Solution

The fourth proportional to 324,628.80, 486,967.66 and 96,906.43 is: 145,366.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,628.80 : 486,967.66 = 96,906.43 : x
  2. Step 2: Convert to fraction form
    324,628.80/486,967.66 = 96,906.43/x
  3. Step 3: Cross multiply
    324,628.80x = 486,967.66 × 96,906.43
  4. Step 4: Simplify right side
    324,628.80x = 47,190,297,456.05
  5. Step 5: Solve for x
    x = 47,190,297,456.05/324,628.80
  6. Step 6: Final answer
    x = 145,366.95

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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.