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Finding the Fourth Proportional to 445,763.85, 668,747.77 and 193,086.41

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Solution

The fourth proportional to 445,763.85, 668,747.77 and 193,086.41 is: 289,673.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,763.85 : 668,747.77 = 193,086.41 : x
  2. Step 2: Convert to fraction form
    445,763.85/668,747.77 = 193,086.41/x
  3. Step 3: Cross multiply
    445,763.85x = 668,747.77 × 193,086.41
  4. Step 4: Simplify right side
    445,763.85x = 129,126,102,278.35
  5. Step 5: Solve for x
    x = 129,126,102,278.35/445,763.85
  6. Step 6: Final answer
    x = 289,673.79

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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.