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Finding the Fourth Proportional to 111,918.01, 167,771.48 and 55,704.97

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Solution

The fourth proportional to 111,918.01, 167,771.48 and 55,704.97 is: 83,504.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,918.01 : 167,771.48 = 55,704.97 : x
  2. Step 2: Convert to fraction form
    111,918.01/167,771.48 = 55,704.97/x
  3. Step 3: Cross multiply
    111,918.01x = 167,771.48 × 55,704.97
  4. Step 4: Simplify right side
    111,918.01x = 9,345,705,260.26
  5. Step 5: Solve for x
    x = 9,345,705,260.26/111,918.01
  6. Step 6: Final answer
    x = 83,504.93

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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.