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Finding the Fourth Proportional to 60,812.72, 91,195.84 and 29,213.78

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Solution

The fourth proportional to 60,812.72, 91,195.84 and 29,213.78 is: 43,809.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,812.72 : 91,195.84 = 29,213.78 : x
  2. Step 2: Convert to fraction form
    60,812.72/91,195.84 = 29,213.78/x
  3. Step 3: Cross multiply
    60,812.72x = 91,195.84 × 29,213.78
  4. Step 4: Simplify right side
    60,812.72x = 2,664,174,787.21
  5. Step 5: Solve for x
    x = 2,664,174,787.21/60,812.72
  6. Step 6: Final answer
    x = 43,809.50

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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.