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Finding the Fourth Proportional to 297,188.81, 445,781.67 and 72,550.43

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Solution

The fourth proportional to 297,188.81, 445,781.67 and 72,550.43 is: 108,825.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,188.81 : 445,781.67 = 72,550.43 : x
  2. Step 2: Convert to fraction form
    297,188.81/445,781.67 = 72,550.43/x
  3. Step 3: Cross multiply
    297,188.81x = 445,781.67 × 72,550.43
  4. Step 4: Simplify right side
    297,188.81x = 32,341,651,844.62
  5. Step 5: Solve for x
    x = 32,341,651,844.62/297,188.81
  6. Step 6: Final answer
    x = 108,825.27

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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.