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Finding the Fourth Proportional to 217,816.60, 326,724.90 and 164,594.20

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Solution

The fourth proportional to 217,816.60, 326,724.90 and 164,594.20 is: 246,891.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,816.60 : 326,724.90 = 164,594.20 : x
  2. Step 2: Convert to fraction form
    217,816.60/326,724.90 = 164,594.20/x
  3. Step 3: Cross multiply
    217,816.60x = 326,724.90 × 164,594.20
  4. Step 4: Simplify right side
    217,816.60x = 53,777,023,535.58
  5. Step 5: Solve for x
    x = 53,777,023,535.58/217,816.60
  6. Step 6: Final answer
    x = 246,891.30

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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.