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Finding the Fourth Proportional to 79,264.80, 118,912.73 and 29,345.31

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Solution

The fourth proportional to 79,264.80, 118,912.73 and 29,345.31 is: 44,023.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,264.80 : 118,912.73 = 29,345.31 : x
  2. Step 2: Convert to fraction form
    79,264.80/118,912.73 = 29,345.31/x
  3. Step 3: Cross multiply
    79,264.80x = 118,912.73 × 29,345.31
  4. Step 4: Simplify right side
    79,264.80x = 3,489,530,778.07
  5. Step 5: Solve for x
    x = 3,489,530,778.07/79,264.80
  6. Step 6: Final answer
    x = 44,023.71

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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.