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Finding the Fourth Proportional to 204,365.61, 306,550.14 and 71,245.62

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Solution

The fourth proportional to 204,365.61, 306,550.14 and 71,245.62 is: 106,869.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,365.61 : 306,550.14 = 71,245.62 : x
  2. Step 2: Convert to fraction form
    204,365.61/306,550.14 = 71,245.62/x
  3. Step 3: Cross multiply
    204,365.61x = 306,550.14 × 71,245.62
  4. Step 4: Simplify right side
    204,365.61x = 21,840,354,785.39
  5. Step 5: Solve for x
    x = 21,840,354,785.39/204,365.61
  6. Step 6: Final answer
    x = 106,869.03

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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.