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Finding the Fourth Proportional to 358,012.19, 494,039.90 and 196,874.03

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Solution

The fourth proportional to 358,012.19, 494,039.90 and 196,874.03 is: 271,676.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,012.19 : 494,039.90 = 196,874.03 : x
  2. Step 2: Convert to fraction form
    358,012.19/494,039.90 = 196,874.03/x
  3. Step 3: Cross multiply
    358,012.19x = 494,039.90 × 196,874.03
  4. Step 4: Simplify right side
    358,012.19x = 97,263,622,639.23
  5. Step 5: Solve for x
    x = 97,263,622,639.23/358,012.19
  6. Step 6: Final answer
    x = 271,676.85

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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.