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Finding the Fourth Proportional to 219,704.20, 329,610.30 and 61,930.60

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Solution

The fourth proportional to 219,704.20, 329,610.30 and 61,930.60 is: 92,911.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,704.20 : 329,610.30 = 61,930.60 : x
  2. Step 2: Convert to fraction form
    219,704.20/329,610.30 = 61,930.60/x
  3. Step 3: Cross multiply
    219,704.20x = 329,610.30 × 61,930.60
  4. Step 4: Simplify right side
    219,704.20x = 20,412,963,645.18
  5. Step 5: Solve for x
    x = 20,412,963,645.18/219,704.20
  6. Step 6: Final answer
    x = 92,911.12

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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.