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Finding the Fourth Proportional to 84,571.68, 126,882.43 and 25,416.37

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Solution

The fourth proportional to 84,571.68, 126,882.43 and 25,416.37 is: 38,132.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,571.68 : 126,882.43 = 25,416.37 : x
  2. Step 2: Convert to fraction form
    84,571.68/126,882.43 = 25,416.37/x
  3. Step 3: Cross multiply
    84,571.68x = 126,882.43 × 25,416.37
  4. Step 4: Simplify right side
    84,571.68x = 3,224,890,787.38
  5. Step 5: Solve for x
    x = 3,224,890,787.38/84,571.68
  6. Step 6: Final answer
    x = 38,132.04

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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.