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Finding the Fourth Proportional to 321,369.60, 481,593.60 and 236,467.20

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Solution

The fourth proportional to 321,369.60, 481,593.60 and 236,467.20 is: 354,361.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,369.60 : 481,593.60 = 236,467.20 : x
  2. Step 2: Convert to fraction form
    321,369.60/481,593.60 = 236,467.20/x
  3. Step 3: Cross multiply
    321,369.60x = 481,593.60 × 236,467.20
  4. Step 4: Simplify right side
    321,369.60x = 113,881,090,129.92
  5. Step 5: Solve for x
    x = 113,881,090,129.92/321,369.60
  6. Step 6: Final answer
    x = 354,361.74

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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.