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Finding the Fourth Proportional to 168,496.16, 252,619.39 and 79,645.84

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Solution

The fourth proportional to 168,496.16, 252,619.39 and 79,645.84 is: 119,409.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,496.16 : 252,619.39 = 79,645.84 : x
  2. Step 2: Convert to fraction form
    168,496.16/252,619.39 = 79,645.84/x
  3. Step 3: Cross multiply
    168,496.16x = 252,619.39 × 79,645.84
  4. Step 4: Simplify right side
    168,496.16x = 20,120,083,317.72
  5. Step 5: Solve for x
    x = 20,120,083,317.72/168,496.16
  6. Step 6: Final answer
    x = 119,409.75

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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.