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Finding the Fourth Proportional to 276,882.72, 415,324.08 and 77,195.04

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Solution

The fourth proportional to 276,882.72, 415,324.08 and 77,195.04 is: 115,792.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,882.72 : 415,324.08 = 77,195.04 : x
  2. Step 2: Convert to fraction form
    276,882.72/415,324.08 = 77,195.04/x
  3. Step 3: Cross multiply
    276,882.72x = 415,324.08 × 77,195.04
  4. Step 4: Simplify right side
    276,882.72x = 32,060,958,968.56
  5. Step 5: Solve for x
    x = 32,060,958,968.56/276,882.72
  6. Step 6: Final answer
    x = 115,792.56

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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.