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Finding the Fourth Proportional to 111,999.65, 167,941.16 and 52,819.43

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Solution

The fourth proportional to 111,999.65, 167,941.16 and 52,819.43 is: 79,201.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,999.65 : 167,941.16 = 52,819.43 : x
  2. Step 2: Convert to fraction form
    111,999.65/167,941.16 = 52,819.43/x
  3. Step 3: Cross multiply
    111,999.65x = 167,941.16 × 52,819.43
  4. Step 4: Simplify right side
    111,999.65x = 8,870,556,500.49
  5. Step 5: Solve for x
    x = 8,870,556,500.49/111,999.65
  6. Step 6: Final answer
    x = 79,201.64

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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.