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Finding the Fourth Proportional to 77,249.50, 115,926.19 and 27,329.40

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Solution

The fourth proportional to 77,249.50, 115,926.19 and 27,329.40 is: 41,012.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,249.50 : 115,926.19 = 27,329.40 : x
  2. Step 2: Convert to fraction form
    77,249.50/115,926.19 = 27,329.40/x
  3. Step 3: Cross multiply
    77,249.50x = 115,926.19 × 27,329.40
  4. Step 4: Simplify right side
    77,249.50x = 3,168,193,148.66
  5. Step 5: Solve for x
    x = 3,168,193,148.66/77,249.50
  6. Step 6: Final answer
    x = 41,012.48

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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.