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Finding the Fourth Proportional to 219,517.52, 329,241.96 and 69,738.12

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Solution

The fourth proportional to 219,517.52, 329,241.96 and 69,738.12 is: 104,596.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,517.52 : 329,241.96 = 69,738.12 : x
  2. Step 2: Convert to fraction form
    219,517.52/329,241.96 = 69,738.12/x
  3. Step 3: Cross multiply
    219,517.52x = 329,241.96 × 69,738.12
  4. Step 4: Simplify right side
    219,517.52x = 22,960,715,315.52
  5. Step 5: Solve for x
    x = 22,960,715,315.52/219,517.52
  6. Step 6: Final answer
    x = 104,596.28

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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.