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Finding the Fourth Proportional to 216,201.11, 324,500.99 and 109,659.83

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Solution

The fourth proportional to 216,201.11, 324,500.99 and 109,659.83 is: 164,590.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,201.11 : 324,500.99 = 109,659.83 : x
  2. Step 2: Convert to fraction form
    216,201.11/324,500.99 = 109,659.83/x
  3. Step 3: Cross multiply
    216,201.11x = 324,500.99 × 109,659.83
  4. Step 4: Simplify right side
    216,201.11x = 35,584,721,227.43
  5. Step 5: Solve for x
    x = 35,584,721,227.43/216,201.11
  6. Step 6: Final answer
    x = 164,590.84

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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.