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Finding the Fourth Proportional to 219,744.80, 329,617.20 and 196,125.20

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Solution

The fourth proportional to 219,744.80, 329,617.20 and 196,125.20 is: 294,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,744.80 : 329,617.20 = 196,125.20 : x
  2. Step 2: Convert to fraction form
    219,744.80/329,617.20 = 196,125.20/x
  3. Step 3: Cross multiply
    219,744.80x = 329,617.20 × 196,125.20
  4. Step 4: Simplify right side
    219,744.80x = 64,646,239,273.44
  5. Step 5: Solve for x
    x = 64,646,239,273.44/219,744.80
  6. Step 6: Final answer
    x = 294,187.80

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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.