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Finding the Fourth Proportional to 395,632.35, 593,379.68 and 111,255.37

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Solution

The fourth proportional to 395,632.35, 593,379.68 and 111,255.37 is: 166,863.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,632.35 : 593,379.68 = 111,255.37 : x
  2. Step 2: Convert to fraction form
    395,632.35/593,379.68 = 111,255.37/x
  3. Step 3: Cross multiply
    395,632.35x = 593,379.68 × 111,255.37
  4. Step 4: Simplify right side
    395,632.35x = 66,016,673,809.16
  5. Step 5: Solve for x
    x = 66,016,673,809.16/395,632.35
  6. Step 6: Final answer
    x = 166,863.69

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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.