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Finding the Fourth Proportional to 111,697.70, 167,546.16 and 45,137.03

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Solution

The fourth proportional to 111,697.70, 167,546.16 and 45,137.03 is: 67,705.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,697.70 : 167,546.16 = 45,137.03 : x
  2. Step 2: Convert to fraction form
    111,697.70/167,546.16 = 45,137.03/x
  3. Step 3: Cross multiply
    111,697.70x = 167,546.16 × 45,137.03
  4. Step 4: Simplify right side
    111,697.70x = 7,562,535,212.57
  5. Step 5: Solve for x
    x = 7,562,535,212.57/111,697.70
  6. Step 6: Final answer
    x = 67,705.38

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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.