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Finding the Fourth Proportional to 324,514.96, 486,772.76 and 84,628.68

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Solution

The fourth proportional to 324,514.96, 486,772.76 and 84,628.68 is: 126,943.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,514.96 : 486,772.76 = 84,628.68 : x
  2. Step 2: Convert to fraction form
    324,514.96/486,772.76 = 84,628.68/x
  3. Step 3: Cross multiply
    324,514.96x = 486,772.76 × 84,628.68
  4. Step 4: Simplify right side
    324,514.96x = 41,194,936,350.33
  5. Step 5: Solve for x
    x = 41,194,936,350.33/324,514.96
  6. Step 6: Final answer
    x = 126,943.11

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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.