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Finding the Fourth Proportional to 395,997.94, 593,936.77 and 129,752.56

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Solution

The fourth proportional to 395,997.94, 593,936.77 and 129,752.56 is: 194,609.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,997.94 : 593,936.77 = 129,752.56 : x
  2. Step 2: Convert to fraction form
    395,997.94/593,936.77 = 129,752.56/x
  3. Step 3: Cross multiply
    395,997.94x = 593,936.77 × 129,752.56
  4. Step 4: Simplify right side
    395,997.94x = 77,064,816,385.63
  5. Step 5: Solve for x
    x = 77,064,816,385.63/395,997.94
  6. Step 6: Final answer
    x = 194,609.13

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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.