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Finding the Fourth Proportional to 111,658.65, 167,485.20 and 27,418.11

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Solution

The fourth proportional to 111,658.65, 167,485.20 and 27,418.11 is: 41,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,658.65 : 167,485.20 = 27,418.11 : x
  2. Step 2: Convert to fraction form
    111,658.65/167,485.20 = 27,418.11/x
  3. Step 3: Cross multiply
    111,658.65x = 167,485.20 × 27,418.11
  4. Step 4: Simplify right side
    111,658.65x = 4,592,126,799.55
  5. Step 5: Solve for x
    x = 4,592,126,799.55/111,658.65
  6. Step 6: Final answer
    x = 41,126.48

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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.