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Finding the Fourth Proportional to 321,586.99, 482,453.97 and 111,224.71

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Solution

The fourth proportional to 321,586.99, 482,453.97 and 111,224.71 is: 166,862.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,586.99 : 482,453.97 = 111,224.71 : x
  2. Step 2: Convert to fraction form
    321,586.99/482,453.97 = 111,224.71/x
  3. Step 3: Cross multiply
    321,586.99x = 482,453.97 × 111,224.71
  4. Step 4: Simplify right side
    321,586.99x = 53,660,802,901.60
  5. Step 5: Solve for x
    x = 53,660,802,901.60/321,586.99
  6. Step 6: Final answer
    x = 166,862.48

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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.