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Finding the Fourth Proportional to 264,939.60, 396,372.60 and 171,627.60

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Solution

The fourth proportional to 264,939.60, 396,372.60 and 171,627.60 is: 256,769.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,939.60 : 396,372.60 = 171,627.60 : x
  2. Step 2: Convert to fraction form
    264,939.60/396,372.60 = 171,627.60/x
  3. Step 3: Cross multiply
    264,939.60x = 396,372.60 × 171,627.60
  4. Step 4: Simplify right side
    264,939.60x = 68,028,478,043.76
  5. Step 5: Solve for x
    x = 68,028,478,043.76/264,939.60
  6. Step 6: Final answer
    x = 256,769.76

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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.