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Finding the Fourth Proportional to 321,753.59, 444,020.01 and 178,513.29

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Solution

The fourth proportional to 321,753.59, 444,020.01 and 178,513.29 is: 246,348.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,753.59 : 444,020.01 = 178,513.29 : x
  2. Step 2: Convert to fraction form
    321,753.59/444,020.01 = 178,513.29/x
  3. Step 3: Cross multiply
    321,753.59x = 444,020.01 × 178,513.29
  4. Step 4: Simplify right side
    321,753.59x = 79,263,472,364.65
  5. Step 5: Solve for x
    x = 79,263,472,364.65/321,753.59
  6. Step 6: Final answer
    x = 246,348.37

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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.