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Finding the Fourth Proportional to 324,385.11, 486,524.84 and 113,973.93

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Solution

The fourth proportional to 324,385.11, 486,524.84 and 113,973.93 is: 170,942.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,385.11 : 486,524.84 = 113,973.93 : x
  2. Step 2: Convert to fraction form
    324,385.11/486,524.84 = 113,973.93/x
  3. Step 3: Cross multiply
    324,385.11x = 486,524.84 × 113,973.93
  4. Step 4: Simplify right side
    324,385.11x = 55,451,147,487.55
  5. Step 5: Solve for x
    x = 55,451,147,487.55/324,385.11
  6. Step 6: Final answer
    x = 170,942.33

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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.