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Finding the Fourth Proportional to 111,704.10, 167,556.15 and 92,004.90

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Solution

The fourth proportional to 111,704.10, 167,556.15 and 92,004.90 is: 138,007.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,704.10 : 167,556.15 = 92,004.90 : x
  2. Step 2: Convert to fraction form
    111,704.10/167,556.15 = 92,004.90/x
  3. Step 3: Cross multiply
    111,704.10x = 167,556.15 × 92,004.90
  4. Step 4: Simplify right side
    111,704.10x = 15,415,986,825.14
  5. Step 5: Solve for x
    x = 15,415,986,825.14/111,704.10
  6. Step 6: Final answer
    x = 138,007.35

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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.