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Finding the Fourth Proportional to 246,593.89, 369,859.66 and 78,131.31

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Solution

The fourth proportional to 246,593.89, 369,859.66 and 78,131.31 is: 117,187.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,593.89 : 369,859.66 = 78,131.31 : x
  2. Step 2: Convert to fraction form
    246,593.89/369,859.66 = 78,131.31/x
  3. Step 3: Cross multiply
    246,593.89x = 369,859.66 × 78,131.31
  4. Step 4: Simplify right side
    246,593.89x = 28,897,619,751.95
  5. Step 5: Solve for x
    x = 28,897,619,751.95/246,593.89
  6. Step 6: Final answer
    x = 117,187.09

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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.