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Finding the Fourth Proportional to 216,241.20, 324,361.04 and 58,469.64

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Solution

The fourth proportional to 216,241.20, 324,361.04 and 58,469.64 is: 87,704.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,241.20 : 324,361.04 = 58,469.64 : x
  2. Step 2: Convert to fraction form
    216,241.20/324,361.04 = 58,469.64/x
  3. Step 3: Cross multiply
    216,241.20x = 324,361.04 × 58,469.64
  4. Step 4: Simplify right side
    216,241.20x = 18,965,272,946.48
  5. Step 5: Solve for x
    x = 18,965,272,946.48/216,241.20
  6. Step 6: Final answer
    x = 87,704.25

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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.