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Finding the Fourth Proportional to 300,896.90, 451,354.24 and 132,329.78

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Solution

The fourth proportional to 300,896.90, 451,354.24 and 132,329.78 is: 198,498.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,896.90 : 451,354.24 = 132,329.78 : x
  2. Step 2: Convert to fraction form
    300,896.90/451,354.24 = 132,329.78/x
  3. Step 3: Cross multiply
    300,896.90x = 451,354.24 × 132,329.78
  4. Step 4: Simplify right side
    300,896.90x = 59,727,607,281.27
  5. Step 5: Solve for x
    x = 59,727,607,281.27/300,896.90
  6. Step 6: Final answer
    x = 198,498.58

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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.