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Finding the Fourth Proportional to 322,603.56, 445,217.85 and 193,546.89

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Solution

The fourth proportional to 322,603.56, 445,217.85 and 193,546.89 is: 267,109.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,603.56 : 445,217.85 = 193,546.89 : x
  2. Step 2: Convert to fraction form
    322,603.56/445,217.85 = 193,546.89/x
  3. Step 3: Cross multiply
    322,603.56x = 445,217.85 × 193,546.89
  4. Step 4: Simplify right side
    322,603.56x = 86,170,530,239.99
  5. Step 5: Solve for x
    x = 86,170,530,239.99/322,603.56
  6. Step 6: Final answer
    x = 267,109.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.