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Finding the Fourth Proportional to 378,906.16, 568,452.76 and 112,665.52

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Solution

The fourth proportional to 378,906.16, 568,452.76 and 112,665.52 is: 169,026.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,906.16 : 568,452.76 = 112,665.52 : x
  2. Step 2: Convert to fraction form
    378,906.16/568,452.76 = 112,665.52/x
  3. Step 3: Cross multiply
    378,906.16x = 568,452.76 × 112,665.52
  4. Step 4: Simplify right side
    378,906.16x = 64,045,025,800.84
  5. Step 5: Solve for x
    x = 64,045,025,800.84/378,906.16
  6. Step 6: Final answer
    x = 169,026.09

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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.