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Finding the Fourth Proportional to 321,861.04, 444,168.48 and 178,621.18

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Solution

The fourth proportional to 321,861.04, 444,168.48 and 178,621.18 is: 246,497.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,861.04 : 444,168.48 = 178,621.18 : x
  2. Step 2: Convert to fraction form
    321,861.04/444,168.48 = 178,621.18/x
  3. Step 3: Cross multiply
    321,861.04x = 444,168.48 × 178,621.18
  4. Step 4: Simplify right side
    321,861.04x = 79,337,898,016.41
  5. Step 5: Solve for x
    x = 79,337,898,016.41/321,861.04
  6. Step 6: Final answer
    x = 246,497.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.