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Finding the Fourth Proportional to 77,279.52, 115,927.14 and 26,671.96

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Solution

The fourth proportional to 77,279.52, 115,927.14 and 26,671.96 is: 40,010.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,279.52 : 115,927.14 = 26,671.96 : x
  2. Step 2: Convert to fraction form
    77,279.52/115,927.14 = 26,671.96/x
  3. Step 3: Cross multiply
    77,279.52x = 115,927.14 × 26,671.96
  4. Step 4: Simplify right side
    77,279.52x = 3,092,003,723.61
  5. Step 5: Solve for x
    x = 3,092,003,723.61/77,279.52
  6. Step 6: Final answer
    x = 40,010.65

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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.