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Finding the Fourth Proportional to 246,245.78, 369,302.99 and 68,721.59

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Solution

The fourth proportional to 246,245.78, 369,302.99 and 68,721.59 is: 103,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,245.78 : 369,302.99 = 68,721.59 : x
  2. Step 2: Convert to fraction form
    246,245.78/369,302.99 = 68,721.59/x
  3. Step 3: Cross multiply
    246,245.78x = 369,302.99 × 68,721.59
  4. Step 4: Simplify right side
    246,245.78x = 25,379,086,474.43
  5. Step 5: Solve for x
    x = 25,379,086,474.43/246,245.78
  6. Step 6: Final answer
    x = 103,064.05

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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.