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Finding the Fourth Proportional to 217,468.98, 326,233.89 and 67,720.14

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Solution

The fourth proportional to 217,468.98, 326,233.89 and 67,720.14 is: 101,589.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,468.98 : 326,233.89 = 67,720.14 : x
  2. Step 2: Convert to fraction form
    217,468.98/326,233.89 = 67,720.14/x
  3. Step 3: Cross multiply
    217,468.98x = 326,233.89 × 67,720.14
  4. Step 4: Simplify right side
    217,468.98x = 22,092,604,703.54
  5. Step 5: Solve for x
    x = 22,092,604,703.54/217,468.98
  6. Step 6: Final answer
    x = 101,589.68

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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.