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Finding the Fourth Proportional to 168,257.67, 251,793.99 and 105,107.51

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Solution

The fourth proportional to 168,257.67, 251,793.99 and 105,107.51 is: 157,291.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,257.67 : 251,793.99 = 105,107.51 : x
  2. Step 2: Convert to fraction form
    168,257.67/251,793.99 = 105,107.51/x
  3. Step 3: Cross multiply
    168,257.67x = 251,793.99 × 105,107.51
  4. Step 4: Simplify right side
    168,257.67x = 26,465,438,062.90
  5. Step 5: Solve for x
    x = 26,465,438,062.90/168,257.67
  6. Step 6: Final answer
    x = 157,291.12

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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.