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Finding the Fourth Proportional to 321,549.60, 482,052.24 and 121,759.86

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Solution

The fourth proportional to 321,549.60, 482,052.24 and 121,759.86 is: 182,536.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,549.60 : 482,052.24 = 121,759.86 : x
  2. Step 2: Convert to fraction form
    321,549.60/482,052.24 = 121,759.86/x
  3. Step 3: Cross multiply
    321,549.60x = 482,052.24 × 121,759.86
  4. Step 4: Simplify right side
    321,549.60x = 58,694,613,255.09
  5. Step 5: Solve for x
    x = 58,694,613,255.09/321,549.60
  6. Step 6: Final answer
    x = 182,536.73

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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.