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Finding the Fourth Proportional to 168,612.10, 252,935.15 and 54,755.14

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Solution

The fourth proportional to 168,612.10, 252,935.15 and 54,755.14 is: 82,138.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,612.10 : 252,935.15 = 54,755.14 : x
  2. Step 2: Convert to fraction form
    168,612.10/252,935.15 = 54,755.14/x
  3. Step 3: Cross multiply
    168,612.10x = 252,935.15 × 54,755.14
  4. Step 4: Simplify right side
    168,612.10x = 13,849,499,549.17
  5. Step 5: Solve for x
    x = 13,849,499,549.17/168,612.10
  6. Step 6: Final answer
    x = 82,138.23

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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.