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Finding the Fourth Proportional to 321,508.14, 482,096.97 and 188,650.32

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Solution

The fourth proportional to 321,508.14, 482,096.97 and 188,650.32 is: 282,878.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,508.14 : 482,096.97 = 188,650.32 : x
  2. Step 2: Convert to fraction form
    321,508.14/482,096.97 = 188,650.32/x
  3. Step 3: Cross multiply
    321,508.14x = 482,096.97 × 188,650.32
  4. Step 4: Simplify right side
    321,508.14x = 90,947,747,661.53
  5. Step 5: Solve for x
    x = 90,947,747,661.53/321,508.14
  6. Step 6: Final answer
    x = 282,878.52

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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.