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Finding the Fourth Proportional to 358,064.27, 494,118.83 and 196,919.30

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Solution

The fourth proportional to 358,064.27, 494,118.83 and 196,919.30 is: 271,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,064.27 : 494,118.83 = 196,919.30 : x
  2. Step 2: Convert to fraction form
    358,064.27/494,118.83 = 196,919.30/x
  3. Step 3: Cross multiply
    358,064.27x = 494,118.83 × 196,919.30
  4. Step 4: Simplify right side
    358,064.27x = 97,301,530,665.23
  5. Step 5: Solve for x
    x = 97,301,530,665.23/358,064.27
  6. Step 6: Final answer
    x = 271,743.20

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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.