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Finding the Fourth Proportional to 216,635.33, 324,850.43 and 126,704.07

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Solution

The fourth proportional to 216,635.33, 324,850.43 and 126,704.07 is: 189,996.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,635.33 : 324,850.43 = 126,704.07 : x
  2. Step 2: Convert to fraction form
    216,635.33/324,850.43 = 126,704.07/x
  3. Step 3: Cross multiply
    216,635.33x = 324,850.43 × 126,704.07
  4. Step 4: Simplify right side
    216,635.33x = 41,159,870,988.73
  5. Step 5: Solve for x
    x = 41,159,870,988.73/216,635.33
  6. Step 6: Final answer
    x = 189,996.12

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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.