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Finding the Fourth Proportional to 395,879.16, 593,771.96 and 111,591.03

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Solution

The fourth proportional to 395,879.16, 593,771.96 and 111,591.03 is: 167,373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,879.16 : 593,771.96 = 111,591.03 : x
  2. Step 2: Convert to fraction form
    395,879.16/593,771.96 = 111,591.03/x
  3. Step 3: Cross multiply
    395,879.16x = 593,771.96 × 111,591.03
  4. Step 4: Simplify right side
    395,879.16x = 66,259,624,043.56
  5. Step 5: Solve for x
    x = 66,259,624,043.56/395,879.16
  6. Step 6: Final answer
    x = 167,373.36

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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.