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Finding the Fourth Proportional to 168,791.62, 253,092.66 and 56,412.64

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Solution

The fourth proportional to 168,791.62, 253,092.66 and 56,412.64 is: 84,587.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,791.62 : 253,092.66 = 56,412.64 : x
  2. Step 2: Convert to fraction form
    168,791.62/253,092.66 = 56,412.64/x
  3. Step 3: Cross multiply
    168,791.62x = 253,092.66 × 56,412.64
  4. Step 4: Simplify right side
    168,791.62x = 14,277,625,115.22
  5. Step 5: Solve for x
    x = 14,277,625,115.22/168,791.62
  6. Step 6: Final answer
    x = 84,587.29

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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.