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Finding the Fourth Proportional to 103,791.52, 155,687.40 and 33,676.30

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Solution

The fourth proportional to 103,791.52, 155,687.40 and 33,676.30 is: 50,514.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,791.52 : 155,687.40 = 33,676.30 : x
  2. Step 2: Convert to fraction form
    103,791.52/155,687.40 = 33,676.30/x
  3. Step 3: Cross multiply
    103,791.52x = 155,687.40 × 33,676.30
  4. Step 4: Simplify right side
    103,791.52x = 5,242,975,588.62
  5. Step 5: Solve for x
    x = 5,242,975,588.62/103,791.52
  6. Step 6: Final answer
    x = 50,514.49

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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.