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Finding the Fourth Proportional to 109,052.82, 150,488.94 and 61,310.61

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Solution

The fourth proportional to 109,052.82, 150,488.94 and 61,310.61 is: 84,606.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,052.82 : 150,488.94 = 61,310.61 : x
  2. Step 2: Convert to fraction form
    109,052.82/150,488.94 = 61,310.61/x
  3. Step 3: Cross multiply
    109,052.82x = 150,488.94 × 61,310.61
  4. Step 4: Simplify right side
    109,052.82x = 9,226,568,709.65
  5. Step 5: Solve for x
    x = 9,226,568,709.65/109,052.82
  6. Step 6: Final answer
    x = 84,606.42

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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.