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Finding the Fourth Proportional to 444,138.40, 666,207.60 and 111,714.40

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Solution

The fourth proportional to 444,138.40, 666,207.60 and 111,714.40 is: 167,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,138.40 : 666,207.60 = 111,714.40 : x
  2. Step 2: Convert to fraction form
    444,138.40/666,207.60 = 111,714.40/x
  3. Step 3: Cross multiply
    444,138.40x = 666,207.60 × 111,714.40
  4. Step 4: Simplify right side
    444,138.40x = 74,424,982,309.44
  5. Step 5: Solve for x
    x = 74,424,982,309.44/444,138.40
  6. Step 6: Final answer
    x = 167,571.60

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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.