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Finding the Fourth Proportional to 79,257.84, 118,933.20 and 29,372.64

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Solution

The fourth proportional to 79,257.84, 118,933.20 and 29,372.64 is: 44,076.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,257.84 : 118,933.20 = 29,372.64 : x
  2. Step 2: Convert to fraction form
    79,257.84/118,933.20 = 29,372.64/x
  3. Step 3: Cross multiply
    79,257.84x = 118,933.20 × 29,372.64
  4. Step 4: Simplify right side
    79,257.84x = 3,493,382,067.65
  5. Step 5: Solve for x
    x = 3,493,382,067.65/79,257.84
  6. Step 6: Final answer
    x = 44,076.17

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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.