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Finding the Fourth Proportional to 76,872.26, 115,360.43 and 26,952.77

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Solution

The fourth proportional to 76,872.26, 115,360.43 and 26,952.77 is: 40,447.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,872.26 : 115,360.43 = 26,952.77 : x
  2. Step 2: Convert to fraction form
    76,872.26/115,360.43 = 26,952.77/x
  3. Step 3: Cross multiply
    76,872.26x = 115,360.43 × 26,952.77
  4. Step 4: Simplify right side
    76,872.26x = 3,109,282,425.33
  5. Step 5: Solve for x
    x = 3,109,282,425.33/76,872.26
  6. Step 6: Final answer
    x = 40,447.39

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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.