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Finding the Fourth Proportional to 444,721.06, 667,206.30 and 178,668.40

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Solution

The fourth proportional to 444,721.06, 667,206.30 and 178,668.40 is: 268,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,721.06 : 667,206.30 = 178,668.40 : x
  2. Step 2: Convert to fraction form
    444,721.06/667,206.30 = 178,668.40/x
  3. Step 3: Cross multiply
    444,721.06x = 667,206.30 × 178,668.40
  4. Step 4: Simplify right side
    444,721.06x = 119,208,682,090.92
  5. Step 5: Solve for x
    x = 119,208,682,090.92/444,721.06
  6. Step 6: Final answer
    x = 268,052.70

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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.