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Finding the Fourth Proportional to 168,204.84, 252,311.89 and 54,357.51

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Solution

The fourth proportional to 168,204.84, 252,311.89 and 54,357.51 is: 81,537.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,204.84 : 252,311.89 = 54,357.51 : x
  2. Step 2: Convert to fraction form
    168,204.84/252,311.89 = 54,357.51/x
  3. Step 3: Cross multiply
    168,204.84x = 252,311.89 × 54,357.51
  4. Step 4: Simplify right side
    168,204.84x = 13,715,046,083.79
  5. Step 5: Solve for x
    x = 13,715,046,083.79/168,204.84
  6. Step 6: Final answer
    x = 81,537.76

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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.