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Finding the Fourth Proportional to 111,969.99, 167,911.23 and 49,596.75

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Solution

The fourth proportional to 111,969.99, 167,911.23 and 49,596.75 is: 74,375.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,969.99 : 167,911.23 = 49,596.75 : x
  2. Step 2: Convert to fraction form
    111,969.99/167,911.23 = 49,596.75/x
  3. Step 3: Cross multiply
    111,969.99x = 167,911.23 × 49,596.75
  4. Step 4: Simplify right side
    111,969.99x = 8,327,851,296.50
  5. Step 5: Solve for x
    x = 8,327,851,296.50/111,969.99
  6. Step 6: Final answer
    x = 74,375.74

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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.