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Finding the Fourth Proportional to 216,879.24, 325,334.07 and 67,099.82

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Solution

The fourth proportional to 216,879.24, 325,334.07 and 67,099.82 is: 100,654.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,879.24 : 325,334.07 = 67,099.82 : x
  2. Step 2: Convert to fraction form
    216,879.24/325,334.07 = 67,099.82/x
  3. Step 3: Cross multiply
    216,879.24x = 325,334.07 × 67,099.82
  4. Step 4: Simplify right side
    216,879.24x = 21,829,855,910.20
  5. Step 5: Solve for x
    x = 21,829,855,910.20/216,879.24
  6. Step 6: Final answer
    x = 100,654.43

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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.