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Finding the Fourth Proportional to 168,449.70, 252,806.60 and 117,517.51

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Solution

The fourth proportional to 168,449.70, 252,806.60 and 117,517.51 is: 176,368.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,449.70 : 252,806.60 = 117,517.51 : x
  2. Step 2: Convert to fraction form
    168,449.70/252,806.60 = 117,517.51/x
  3. Step 3: Cross multiply
    168,449.70x = 252,806.60 × 117,517.51
  4. Step 4: Simplify right side
    168,449.70x = 29,709,200,879.53
  5. Step 5: Solve for x
    x = 29,709,200,879.53/168,449.70
  6. Step 6: Final answer
    x = 176,368.39

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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.