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Finding the Fourth Proportional to 178,579.72, 267,861.90 and 53,917

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Solution

The fourth proportional to 178,579.72, 267,861.90 and 53,917 is: 80,873.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,579.72 : 267,861.90 = 53,917 : x
  2. Step 2: Convert to fraction form
    178,579.72/267,861.90 = 53,917/x
  3. Step 3: Cross multiply
    178,579.72x = 267,861.90 × 53,917
  4. Step 4: Simplify right side
    178,579.72x = 14,442,310,062.30
  5. Step 5: Solve for x
    x = 14,442,310,062.30/178,579.72
  6. Step 6: Final answer
    x = 80,873.18

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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.