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Finding the Fourth Proportional to 321,003.60, 481,044.60 and 236,101.20

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Solution

The fourth proportional to 321,003.60, 481,044.60 and 236,101.20 is: 353,812.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,003.60 : 481,044.60 = 236,101.20 : x
  2. Step 2: Convert to fraction form
    321,003.60/481,044.60 = 236,101.20/x
  3. Step 3: Cross multiply
    321,003.60x = 481,044.60 × 236,101.20
  4. Step 4: Simplify right side
    321,003.60x = 113,575,207,313.52
  5. Step 5: Solve for x
    x = 113,575,207,313.52/321,003.60
  6. Step 6: Final answer
    x = 353,812.88

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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.