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Finding the Fourth Proportional to 111,917.55, 167,770.80 and 55,704.52

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Solution

The fourth proportional to 111,917.55, 167,770.80 and 55,704.52 is: 83,504.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,917.55 : 167,770.80 = 55,704.52 : x
  2. Step 2: Convert to fraction form
    111,917.55/167,770.80 = 55,704.52/x
  3. Step 3: Cross multiply
    111,917.55x = 167,770.80 × 55,704.52
  4. Step 4: Simplify right side
    111,917.55x = 9,345,591,884.02
  5. Step 5: Solve for x
    x = 9,345,591,884.02/111,917.55
  6. Step 6: Final answer
    x = 83,504.26

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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.