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Finding the Fourth Proportional to 79,268.31, 118,920.77 and 26,676.51

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Solution

The fourth proportional to 79,268.31, 118,920.77 and 26,676.51 is: 40,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,268.31 : 118,920.77 = 26,676.51 : x
  2. Step 2: Convert to fraction form
    79,268.31/118,920.77 = 26,676.51/x
  3. Step 3: Cross multiply
    79,268.31x = 118,920.77 × 26,676.51
  4. Step 4: Simplify right side
    79,268.31x = 3,172,390,976.73
  5. Step 5: Solve for x
    x = 3,172,390,976.73/79,268.31
  6. Step 6: Final answer
    x = 40,020.92

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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.