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Finding the Fourth Proportional to 395,996.94, 593,935.27 and 129,751.56

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Solution

The fourth proportional to 395,996.94, 593,935.27 and 129,751.56 is: 194,607.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,996.94 : 593,935.27 = 129,751.56 : x
  2. Step 2: Convert to fraction form
    395,996.94/593,935.27 = 129,751.56/x
  3. Step 3: Cross multiply
    395,996.94x = 593,935.27 × 129,751.56
  4. Step 4: Simplify right side
    395,996.94x = 77,064,027,821.52
  5. Step 5: Solve for x
    x = 77,064,027,821.52/395,996.94
  6. Step 6: Final answer
    x = 194,607.63

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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.