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Finding the Fourth Proportional to 324,744.78, 486,992.55 and 111,472.92

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Solution

The fourth proportional to 324,744.78, 486,992.55 and 111,472.92 is: 167,166.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,744.78 : 486,992.55 = 111,472.92 : x
  2. Step 2: Convert to fraction form
    324,744.78/486,992.55 = 111,472.92/x
  3. Step 3: Cross multiply
    324,744.78x = 486,992.55 × 111,472.92
  4. Step 4: Simplify right side
    324,744.78x = 54,286,483,810.99
  5. Step 5: Solve for x
    x = 54,286,483,810.99/324,744.78
  6. Step 6: Final answer
    x = 167,166.61

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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.