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Finding the Fourth Proportional to 444,738.76, 667,144.89 and 145,212.70

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Solution

The fourth proportional to 444,738.76, 667,144.89 and 145,212.70 is: 217,831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,738.76 : 667,144.89 = 145,212.70 : x
  2. Step 2: Convert to fraction form
    444,738.76/667,144.89 = 145,212.70/x
  3. Step 3: Cross multiply
    444,738.76x = 667,144.89 × 145,212.70
  4. Step 4: Simplify right side
    444,738.76x = 96,877,910,768.10
  5. Step 5: Solve for x
    x = 96,877,910,768.10/444,738.76
  6. Step 6: Final answer
    x = 217,831.05

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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.