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Finding the Fourth Proportional to 297,212.20, 445,818.30 and 119,627.80

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Solution

The fourth proportional to 297,212.20, 445,818.30 and 119,627.80 is: 179,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,212.20 : 445,818.30 = 119,627.80 : x
  2. Step 2: Convert to fraction form
    297,212.20/445,818.30 = 119,627.80/x
  3. Step 3: Cross multiply
    297,212.20x = 445,818.30 × 119,627.80
  4. Step 4: Simplify right side
    297,212.20x = 53,332,262,428.74
  5. Step 5: Solve for x
    x = 53,332,262,428.74/297,212.20
  6. Step 6: Final answer
    x = 179,441.70

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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.