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Finding the Fourth Proportional to 217,355.76, 326,080.56 and 67,593.12

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Solution

The fourth proportional to 217,355.76, 326,080.56 and 67,593.12 is: 101,404.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,355.76 : 326,080.56 = 67,593.12 : x
  2. Step 2: Convert to fraction form
    217,355.76/326,080.56 = 67,593.12/x
  3. Step 3: Cross multiply
    217,355.76x = 326,080.56 × 67,593.12
  4. Step 4: Simplify right side
    217,355.76x = 22,040,802,421.75
  5. Step 5: Solve for x
    x = 22,040,802,421.75/217,355.76
  6. Step 6: Final answer
    x = 101,404.27

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1.5x scale

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.