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Finding the Fourth Proportional to 217,676.70, 326,515.05 and 164,532.60

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Solution

The fourth proportional to 217,676.70, 326,515.05 and 164,532.60 is: 246,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,676.70 : 326,515.05 = 164,532.60 : x
  2. Step 2: Convert to fraction form
    217,676.70/326,515.05 = 164,532.60/x
  3. Step 3: Cross multiply
    217,676.70x = 326,515.05 × 164,532.60
  4. Step 4: Simplify right side
    217,676.70x = 53,722,370,115.63
  5. Step 5: Solve for x
    x = 53,722,370,115.63/217,676.70
  6. Step 6: Final answer
    x = 246,798.90

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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.