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Finding the Fourth Proportional to 253,237.92, 349,474.32 and 140,062.88

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Solution

The fourth proportional to 253,237.92, 349,474.32 and 140,062.88 is: 193,290.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,237.92 : 349,474.32 = 140,062.88 : x
  2. Step 2: Convert to fraction form
    253,237.92/349,474.32 = 140,062.88/x
  3. Step 3: Cross multiply
    253,237.92x = 349,474.32 × 140,062.88
  4. Step 4: Simplify right side
    253,237.92x = 48,948,379,745.24
  5. Step 5: Solve for x
    x = 48,948,379,745.24/253,237.92
  6. Step 6: Final answer
    x = 193,290.09

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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.