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Finding the Fourth Proportional to 263,111.94, 394,692.85 and 73,572.31

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Solution

The fourth proportional to 263,111.94, 394,692.85 and 73,572.31 is: 110,365.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,111.94 : 394,692.85 = 73,572.31 : x
  2. Step 2: Convert to fraction form
    263,111.94/394,692.85 = 73,572.31/x
  3. Step 3: Cross multiply
    263,111.94x = 394,692.85 × 73,572.31
  4. Step 4: Simplify right side
    263,111.94x = 29,038,464,714.98
  5. Step 5: Solve for x
    x = 29,038,464,714.98/263,111.94
  6. Step 6: Final answer
    x = 110,365.44

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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.