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Finding the Fourth Proportional to 321,882.60, 482,823.90 and 188,826.60

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Solution

The fourth proportional to 321,882.60, 482,823.90 and 188,826.60 is: 283,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,882.60 : 482,823.90 = 188,826.60 : x
  2. Step 2: Convert to fraction form
    321,882.60/482,823.90 = 188,826.60/x
  3. Step 3: Cross multiply
    321,882.60x = 482,823.90 × 188,826.60
  4. Step 4: Simplify right side
    321,882.60x = 91,169,995,435.74
  5. Step 5: Solve for x
    x = 91,169,995,435.74/321,882.60
  6. Step 6: Final answer
    x = 283,239.90

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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.