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Finding the Fourth Proportional to 217,410.59, 326,118.40 and 65,608.99

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Solution

The fourth proportional to 217,410.59, 326,118.40 and 65,608.99 is: 98,414.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,410.59 : 326,118.40 = 65,608.99 : x
  2. Step 2: Convert to fraction form
    217,410.59/326,118.40 = 65,608.99/x
  3. Step 3: Cross multiply
    217,410.59x = 326,118.40 × 65,608.99
  4. Step 4: Simplify right side
    217,410.59x = 21,396,298,844.42
  5. Step 5: Solve for x
    x = 21,396,298,844.42/217,410.59
  6. Step 6: Final answer
    x = 98,414.24

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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.