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Finding the Fourth Proportional to 321,846.26, 482,613.87 and 141,909.62

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Solution

The fourth proportional to 321,846.26, 482,613.87 and 141,909.62 is: 212,795.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,846.26 : 482,613.87 = 141,909.62 : x
  2. Step 2: Convert to fraction form
    321,846.26/482,613.87 = 141,909.62/x
  3. Step 3: Cross multiply
    321,846.26x = 482,613.87 × 141,909.62
  4. Step 4: Simplify right side
    321,846.26x = 68,487,550,898.43
  5. Step 5: Solve for x
    x = 68,487,550,898.43/321,846.26
  6. Step 6: Final answer
    x = 212,795.86

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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.