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Finding the Fourth Proportional to 395,422.01, 593,149.41 and 114,939.26

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Solution

The fourth proportional to 395,422.01, 593,149.41 and 114,939.26 is: 172,413.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,422.01 : 593,149.41 = 114,939.26 : x
  2. Step 2: Convert to fraction form
    395,422.01/593,149.41 = 114,939.26/x
  3. Step 3: Cross multiply
    395,422.01x = 593,149.41 × 114,939.26
  4. Step 4: Simplify right side
    395,422.01x = 68,176,150,714.39
  5. Step 5: Solve for x
    x = 68,176,150,714.39/395,422.01
  6. Step 6: Final answer
    x = 172,413.65

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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.