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Finding the Fourth Proportional to 79,065.84, 118,645.44 and 29,181

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Solution

The fourth proportional to 79,065.84, 118,645.44 and 29,181 is: 43,788.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,065.84 : 118,645.44 = 29,181 : x
  2. Step 2: Convert to fraction form
    79,065.84/118,645.44 = 29,181/x
  3. Step 3: Cross multiply
    79,065.84x = 118,645.44 × 29,181
  4. Step 4: Simplify right side
    79,065.84x = 3,462,192,584.64
  5. Step 5: Solve for x
    x = 3,462,192,584.64/79,065.84
  6. Step 6: Final answer
    x = 43,788.73

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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.