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Finding the Fourth Proportional to 218,142.64, 327,219.43 and 60,372.46

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Solution

The fourth proportional to 218,142.64, 327,219.43 and 60,372.46 is: 90,560.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,142.64 : 327,219.43 = 60,372.46 : x
  2. Step 2: Convert to fraction form
    218,142.64/327,219.43 = 60,372.46/x
  3. Step 3: Cross multiply
    218,142.64x = 327,219.43 × 60,372.46
  4. Step 4: Simplify right side
    218,142.64x = 19,755,043,495.19
  5. Step 5: Solve for x
    x = 19,755,043,495.19/218,142.64
  6. Step 6: Final answer
    x = 90,560.21

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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.