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Finding the Fourth Proportional to 111,606.75, 167,267.73 and 52,311.78

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Solution

The fourth proportional to 111,606.75, 167,267.73 and 52,311.78 is: 78,400.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,606.75 : 167,267.73 = 52,311.78 : x
  2. Step 2: Convert to fraction form
    111,606.75/167,267.73 = 52,311.78/x
  3. Step 3: Cross multiply
    111,606.75x = 167,267.73 × 52,311.78
  4. Step 4: Simplify right side
    111,606.75x = 8,750,072,692.86
  5. Step 5: Solve for x
    x = 8,750,072,692.86/111,606.75
  6. Step 6: Final answer
    x = 78,400.93

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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.