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Finding the Fourth Proportional to 111,879.40, 167,910.90 and 111,004.60

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Solution

The fourth proportional to 111,879.40, 167,910.90 and 111,004.60 is: 166,597.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,879.40 : 167,910.90 = 111,004.60 : x
  2. Step 2: Convert to fraction form
    111,879.40/167,910.90 = 111,004.60/x
  3. Step 3: Cross multiply
    111,879.40x = 167,910.90 × 111,004.60
  4. Step 4: Simplify right side
    111,879.40x = 18,638,882,290.14
  5. Step 5: Solve for x
    x = 18,638,882,290.14/111,879.40
  6. Step 6: Final answer
    x = 166,597.98

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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.