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Finding the Fourth Proportional to 125,936.78, 188,908.40 and 41,696.78

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Solution

The fourth proportional to 125,936.78, 188,908.40 and 41,696.78 is: 62,546.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,936.78 : 188,908.40 = 41,696.78 : x
  2. Step 2: Convert to fraction form
    125,936.78/188,908.40 = 41,696.78/x
  3. Step 3: Cross multiply
    125,936.78x = 188,908.40 × 41,696.78
  4. Step 4: Simplify right side
    125,936.78x = 7,876,871,154.65
  5. Step 5: Solve for x
    x = 7,876,871,154.65/125,936.78
  6. Step 6: Final answer
    x = 62,546.24

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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.