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Finding the Fourth Proportional to 111,855.79, 167,748.12 and 36,961.96

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Solution

The fourth proportional to 111,855.79, 167,748.12 and 36,961.96 is: 55,431.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,855.79 : 167,748.12 = 36,961.96 : x
  2. Step 2: Convert to fraction form
    111,855.79/167,748.12 = 36,961.96/x
  3. Step 3: Cross multiply
    111,855.79x = 167,748.12 × 36,961.96
  4. Step 4: Simplify right side
    111,855.79x = 6,200,299,301.52
  5. Step 5: Solve for x
    x = 6,200,299,301.52/111,855.79
  6. Step 6: Final answer
    x = 55,431.19

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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.