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Finding the Fourth Proportional to 217,818.60, 326,727.90 and 164,596.20

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Solution

The fourth proportional to 217,818.60, 326,727.90 and 164,596.20 is: 246,894.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,818.60 : 326,727.90 = 164,596.20 : x
  2. Step 2: Convert to fraction form
    217,818.60/326,727.90 = 164,596.20/x
  3. Step 3: Cross multiply
    217,818.60x = 326,727.90 × 164,596.20
  4. Step 4: Simplify right side
    217,818.60x = 53,778,170,773.98
  5. Step 5: Solve for x
    x = 53,778,170,773.98/217,818.60
  6. Step 6: Final answer
    x = 246,894.30

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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.