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Finding the Fourth Proportional to 79,904.88, 119,857.32 and 27,314.82

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Solution

The fourth proportional to 79,904.88, 119,857.32 and 27,314.82 is: 40,972.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,904.88 : 119,857.32 = 27,314.82 : x
  2. Step 2: Convert to fraction form
    79,904.88/119,857.32 = 27,314.82/x
  3. Step 3: Cross multiply
    79,904.88x = 119,857.32 × 27,314.82
  4. Step 4: Simplify right side
    79,904.88x = 3,273,881,121.48
  5. Step 5: Solve for x
    x = 3,273,881,121.48/79,904.88
  6. Step 6: Final answer
    x = 40,972.23

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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.