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Finding the Fourth Proportional to 326,687.42, 490,100.39 and 116,324.75

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Solution

The fourth proportional to 326,687.42, 490,100.39 and 116,324.75 is: 174,511.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,687.42 : 490,100.39 = 116,324.75 : x
  2. Step 2: Convert to fraction form
    326,687.42/490,100.39 = 116,324.75/x
  3. Step 3: Cross multiply
    326,687.42x = 490,100.39 × 116,324.75
  4. Step 4: Simplify right side
    326,687.42x = 57,010,805,341.65
  5. Step 5: Solve for x
    x = 57,010,805,341.65/326,687.42
  6. Step 6: Final answer
    x = 174,511.79

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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.