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Finding the Fourth Proportional to 76,960.88, 115,458.63 and 27,044.43

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Solution

The fourth proportional to 76,960.88, 115,458.63 and 27,044.43 is: 40,572.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,960.88 : 115,458.63 = 27,044.43 : x
  2. Step 2: Convert to fraction form
    76,960.88/115,458.63 = 27,044.43/x
  3. Step 3: Cross multiply
    76,960.88x = 115,458.63 × 27,044.43
  4. Step 4: Simplify right side
    76,960.88x = 3,122,512,836.93
  5. Step 5: Solve for x
    x = 3,122,512,836.93/76,960.88
  6. Step 6: Final answer
    x = 40,572.73

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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.