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Finding the Fourth Proportional to 125,786.82, 188,641.81 and 35,836.87

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Solution

The fourth proportional to 125,786.82, 188,641.81 and 35,836.87 is: 53,744.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,786.82 : 188,641.81 = 35,836.87 : x
  2. Step 2: Convert to fraction form
    125,786.82/188,641.81 = 35,836.87/x
  3. Step 3: Cross multiply
    125,786.82x = 188,641.81 × 35,836.87
  4. Step 4: Simplify right side
    125,786.82x = 6,760,332,579.78
  5. Step 5: Solve for x
    x = 6,760,332,579.78/125,786.82
  6. Step 6: Final answer
    x = 53,744.37

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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.