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Finding the Fourth Proportional to 198,366.72, 297,593.82 and 65,241.60

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Solution

The fourth proportional to 198,366.72, 297,593.82 and 65,241.60 is: 97,876.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,366.72 : 297,593.82 = 65,241.60 : x
  2. Step 2: Convert to fraction form
    198,366.72/297,593.82 = 65,241.60/x
  3. Step 3: Cross multiply
    198,366.72x = 297,593.82 × 65,241.60
  4. Step 4: Simplify right side
    198,366.72x = 19,415,496,966.91
  5. Step 5: Solve for x
    x = 19,415,496,966.91/198,366.72
  6. Step 6: Final answer
    x = 97,876.79

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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.