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Finding the Fourth Proportional to 136,262.84, 188,046.78 and 82,557.68

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Solution

The fourth proportional to 136,262.84, 188,046.78 and 82,557.68 is: 113,932.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,262.84 : 188,046.78 = 82,557.68 : x
  2. Step 2: Convert to fraction form
    136,262.84/188,046.78 = 82,557.68/x
  3. Step 3: Cross multiply
    136,262.84x = 188,046.78 × 82,557.68
  4. Step 4: Simplify right side
    136,262.84x = 15,524,705,888.27
  5. Step 5: Solve for x
    x = 15,524,705,888.27/136,262.84
  6. Step 6: Final answer
    x = 113,932.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.