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Finding the Fourth Proportional to 217,674.70, 326,512.05 and 164,530.60

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Solution

The fourth proportional to 217,674.70, 326,512.05 and 164,530.60 is: 246,795.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,674.70 : 326,512.05 = 164,530.60 : x
  2. Step 2: Convert to fraction form
    217,674.70/326,512.05 = 164,530.60/x
  3. Step 3: Cross multiply
    217,674.70x = 326,512.05 × 164,530.60
  4. Step 4: Simplify right side
    217,674.70x = 53,721,223,493.73
  5. Step 5: Solve for x
    x = 53,721,223,493.73/217,674.70
  6. Step 6: Final answer
    x = 246,795.90

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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.