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Finding the Fourth Proportional to 274,491.01, 378,496.79 and 178,820.29

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Solution

The fourth proportional to 274,491.01, 378,496.79 and 178,820.29 is: 246,576.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,491.01 : 378,496.79 = 178,820.29 : x
  2. Step 2: Convert to fraction form
    274,491.01/378,496.79 = 178,820.29/x
  3. Step 3: Cross multiply
    274,491.01x = 378,496.79 × 178,820.29
  4. Step 4: Simplify right side
    274,491.01x = 67,682,903,911.53
  5. Step 5: Solve for x
    x = 67,682,903,911.53/274,491.01
  6. Step 6: Final answer
    x = 246,576.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.