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Finding the Fourth Proportional to 80,359.88, 110,846.61 and 51,716.93

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Solution

The fourth proportional to 80,359.88, 110,846.61 and 51,716.93 is: 71,337.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,359.88 : 110,846.61 = 51,716.93 : x
  2. Step 2: Convert to fraction form
    80,359.88/110,846.61 = 51,716.93/x
  3. Step 3: Cross multiply
    80,359.88x = 110,846.61 × 51,716.93
  4. Step 4: Simplify right side
    80,359.88x = 5,732,645,815.87
  5. Step 5: Solve for x
    x = 5,732,645,815.87/80,359.88
  6. Step 6: Final answer
    x = 71,337.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.