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Finding the Fourth Proportional to 202,379.26, 279,276.02 and 111,733.32

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Solution

The fourth proportional to 202,379.26, 279,276.02 and 111,733.32 is: 154,187.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,379.26 : 279,276.02 = 111,733.32 : x
  2. Step 2: Convert to fraction form
    202,379.26/279,276.02 = 111,733.32/x
  3. Step 3: Cross multiply
    202,379.26x = 279,276.02 × 111,733.32
  4. Step 4: Simplify right side
    202,379.26x = 31,204,436,910.99
  5. Step 5: Solve for x
    x = 31,204,436,910.99/202,379.26
  6. Step 6: Final answer
    x = 154,187.92

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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.