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Finding the Fourth Proportional to 245,194.89, 366,716.69 and 218,366.43

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Solution

The fourth proportional to 245,194.89, 366,716.69 and 218,366.43 is: 326,591.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,194.89 : 366,716.69 = 218,366.43 : x
  2. Step 2: Convert to fraction form
    245,194.89/366,716.69 = 218,366.43/x
  3. Step 3: Cross multiply
    245,194.89x = 366,716.69 × 218,366.43
  4. Step 4: Simplify right side
    245,194.89x = 80,078,614,416.72
  5. Step 5: Solve for x
    x = 80,078,614,416.72/245,194.89
  6. Step 6: Final answer
    x = 326,591.69

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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.