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Finding the Fourth Proportional to 542,844.22, 814,269.42 and 143,480.77

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Solution

The fourth proportional to 542,844.22, 814,269.42 and 143,480.77 is: 215,221.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,844.22 : 814,269.42 = 143,480.77 : x
  2. Step 2: Convert to fraction form
    542,844.22/814,269.42 = 143,480.77/x
  3. Step 3: Cross multiply
    542,844.22x = 814,269.42 × 143,480.77
  4. Step 4: Simplify right side
    542,844.22x = 116,832,003,369.05
  5. Step 5: Solve for x
    x = 116,832,003,369.05/542,844.22
  6. Step 6: Final answer
    x = 215,221.97

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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.