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Finding the Fourth Proportional to 111,989.00, 167,981.42 and 27,749.36

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Solution

The fourth proportional to 111,989.00, 167,981.42 and 27,749.36 is: 41,623.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,989.00 : 167,981.42 = 27,749.36 : x
  2. Step 2: Convert to fraction form
    111,989.00/167,981.42 = 27,749.36/x
  3. Step 3: Cross multiply
    111,989.00x = 167,981.42 × 27,749.36
  4. Step 4: Simplify right side
    111,989.00x = 4,661,375,918.24
  5. Step 5: Solve for x
    x = 4,661,375,918.24/111,989.00
  6. Step 6: Final answer
    x = 41,623.52

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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.