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Finding the Fourth Proportional to 321,902.01, 444,188.75 and 178,668.09

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Solution

The fourth proportional to 321,902.01, 444,188.75 and 178,668.09 is: 246,541.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,902.01 : 444,188.75 = 178,668.09 : x
  2. Step 2: Convert to fraction form
    321,902.01/444,188.75 = 178,668.09/x
  3. Step 3: Cross multiply
    321,902.01x = 444,188.75 × 178,668.09
  4. Step 4: Simplify right side
    321,902.01x = 79,362,354,668.65
  5. Step 5: Solve for x
    x = 79,362,354,668.65/321,902.01
  6. Step 6: Final answer
    x = 246,541.97

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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.