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Finding the Fourth Proportional to 111,965.52, 167,953.14 and 41,806.56

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Solution

The fourth proportional to 111,965.52, 167,953.14 and 41,806.56 is: 62,711.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,965.52 : 167,953.14 = 41,806.56 : x
  2. Step 2: Convert to fraction form
    111,965.52/167,953.14 = 41,806.56/x
  3. Step 3: Cross multiply
    111,965.52x = 167,953.14 × 41,806.56
  4. Step 4: Simplify right side
    111,965.52x = 7,021,543,024.60
  5. Step 5: Solve for x
    x = 7,021,543,024.60/111,965.52
  6. Step 6: Final answer
    x = 62,711.65

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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.