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Finding the Fourth Proportional to 329,616.72, 454,938.12 and 195,558.48

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Solution

The fourth proportional to 329,616.72, 454,938.12 and 195,558.48 is: 269,910.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,616.72 : 454,938.12 = 195,558.48 : x
  2. Step 2: Convert to fraction form
    329,616.72/454,938.12 = 195,558.48/x
  3. Step 3: Cross multiply
    329,616.72x = 454,938.12 × 195,558.48
  4. Step 4: Simplify right side
    329,616.72x = 88,967,007,241.26
  5. Step 5: Solve for x
    x = 88,967,007,241.26/329,616.72
  6. Step 6: Final answer
    x = 269,910.48

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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.