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Finding the Fourth Proportional to 168,612.60, 252,935.90 and 54,755.64

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Solution

The fourth proportional to 168,612.60, 252,935.90 and 54,755.64 is: 82,138.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,612.60 : 252,935.90 = 54,755.64 : x
  2. Step 2: Convert to fraction form
    168,612.60/252,935.90 = 54,755.64/x
  3. Step 3: Cross multiply
    168,612.60x = 252,935.90 × 54,755.64
  4. Step 4: Simplify right side
    168,612.60x = 13,849,667,083.48
  5. Step 5: Solve for x
    x = 13,849,667,083.48/168,612.60
  6. Step 6: Final answer
    x = 82,138.98

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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.