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Finding the Fourth Proportional to 111,781.64, 167,636.90 and 36,887.83

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Solution

The fourth proportional to 111,781.64, 167,636.90 and 36,887.83 is: 55,320.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,781.64 : 167,636.90 = 36,887.83 : x
  2. Step 2: Convert to fraction form
    111,781.64/167,636.90 = 36,887.83/x
  3. Step 3: Cross multiply
    111,781.64x = 167,636.90 × 36,887.83
  4. Step 4: Simplify right side
    111,781.64x = 6,183,761,142.05
  5. Step 5: Solve for x
    x = 6,183,761,142.05/111,781.64
  6. Step 6: Final answer
    x = 55,320.01

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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.