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Finding the Fourth Proportional to 231,662.75, 319,692.44 and 131,060.75

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Solution

The fourth proportional to 231,662.75, 319,692.44 and 131,060.75 is: 180,862.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,662.75 : 319,692.44 = 131,060.75 : x
  2. Step 2: Convert to fraction form
    231,662.75/319,692.44 = 131,060.75/x
  3. Step 3: Cross multiply
    231,662.75x = 319,692.44 × 131,060.75
  4. Step 4: Simplify right side
    231,662.75x = 41,899,130,300.43
  5. Step 5: Solve for x
    x = 41,899,130,300.43/231,662.75
  6. Step 6: Final answer
    x = 180,862.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.