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Finding the Fourth Proportional to 125,682.91, 188,524.40 and 36,936.42

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Solution

The fourth proportional to 125,682.91, 188,524.40 and 36,936.42 is: 55,404.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,682.91 : 188,524.40 = 36,936.42 : x
  2. Step 2: Convert to fraction form
    125,682.91/188,524.40 = 36,936.42/x
  3. Step 3: Cross multiply
    125,682.91x = 188,524.40 × 36,936.42
  4. Step 4: Simplify right side
    125,682.91x = 6,963,416,418.65
  5. Step 5: Solve for x
    x = 6,963,416,418.65/125,682.91
  6. Step 6: Final answer
    x = 55,404.64

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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.