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Finding the Fourth Proportional to 219,604.25, 329,406.38 and 69,844.85

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Solution

The fourth proportional to 219,604.25, 329,406.38 and 69,844.85 is: 104,767.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,604.25 : 329,406.38 = 69,844.85 : x
  2. Step 2: Convert to fraction form
    219,604.25/329,406.38 = 69,844.85/x
  3. Step 3: Cross multiply
    219,604.25x = 329,406.38 × 69,844.85
  4. Step 4: Simplify right side
    219,604.25x = 23,007,338,850.92
  5. Step 5: Solve for x
    x = 23,007,338,850.92/219,604.25
  6. Step 6: Final answer
    x = 104,767.28

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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.