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Finding the Fourth Proportional to 339,387.30, 468,327.16 and 196,156.62

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Solution

The fourth proportional to 339,387.30, 468,327.16 and 196,156.62 is: 270,680.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,387.30 : 468,327.16 = 196,156.62 : x
  2. Step 2: Convert to fraction form
    339,387.30/468,327.16 = 196,156.62/x
  3. Step 3: Cross multiply
    339,387.30x = 468,327.16 × 196,156.62
  4. Step 4: Simplify right side
    339,387.30x = 91,865,472,269.41
  5. Step 5: Solve for x
    x = 91,865,472,269.41/339,387.30
  6. Step 6: Final answer
    x = 270,680.35

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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.