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Finding the Fourth Proportional to 79,791.86, 119,708.44 and 29,875.88

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Solution

The fourth proportional to 79,791.86, 119,708.44 and 29,875.88 is: 44,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,791.86 : 119,708.44 = 29,875.88 : x
  2. Step 2: Convert to fraction form
    79,791.86/119,708.44 = 29,875.88/x
  3. Step 3: Cross multiply
    79,791.86x = 119,708.44 × 29,875.88
  4. Step 4: Simplify right side
    79,791.86x = 3,576,394,988.43
  5. Step 5: Solve for x
    x = 3,576,394,988.43/79,791.86
  6. Step 6: Final answer
    x = 44,821.55

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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.