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Finding the Fourth Proportional to 202,251.87, 279,108.42 and 111,610.50

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Solution

The fourth proportional to 202,251.87, 279,108.42 and 111,610.50 is: 154,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,251.87 : 279,108.42 = 111,610.50 : x
  2. Step 2: Convert to fraction form
    202,251.87/279,108.42 = 111,610.50/x
  3. Step 3: Cross multiply
    202,251.87x = 279,108.42 × 111,610.50
  4. Step 4: Simplify right side
    202,251.87x = 31,151,430,310.41
  5. Step 5: Solve for x
    x = 31,151,430,310.41/202,251.87
  6. Step 6: Final answer
    x = 154,022.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.