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Finding the Fourth Proportional to 321,942.48, 444,300.81 and 178,704.93

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Solution

The fourth proportional to 321,942.48, 444,300.81 and 178,704.93 is: 246,624.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,942.48 : 444,300.81 = 178,704.93 : x
  2. Step 2: Convert to fraction form
    321,942.48/444,300.81 = 178,704.93/x
  3. Step 3: Cross multiply
    321,942.48x = 444,300.81 × 178,704.93
  4. Step 4: Simplify right side
    321,942.48x = 79,398,745,149.99
  5. Step 5: Solve for x
    x = 79,398,745,149.99/321,942.48
  6. Step 6: Final answer
    x = 246,624.01

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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.