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Finding the Fourth Proportional to 111,767.49, 167,634.82 and 36,890.09

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Solution

The fourth proportional to 111,767.49, 167,634.82 and 36,890.09 is: 55,329.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,767.49 : 167,634.82 = 36,890.09 : x
  2. Step 2: Convert to fraction form
    111,767.49/167,634.82 = 36,890.09/x
  3. Step 3: Cross multiply
    111,767.49x = 167,634.82 × 36,890.09
  4. Step 4: Simplify right side
    111,767.49x = 6,184,063,596.93
  5. Step 5: Solve for x
    x = 6,184,063,596.93/111,767.49
  6. Step 6: Final answer
    x = 55,329.72

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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.