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Finding the Fourth Proportional to 355,076.34, 489,997.77 and 193,932.04

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Solution

The fourth proportional to 355,076.34, 489,997.77 and 193,932.04 is: 267,622.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,076.34 : 489,997.77 = 193,932.04 : x
  2. Step 2: Convert to fraction form
    355,076.34/489,997.77 = 193,932.04/x
  3. Step 3: Cross multiply
    355,076.34x = 489,997.77 × 193,932.04
  4. Step 4: Simplify right side
    355,076.34x = 95,026,267,188.92
  5. Step 5: Solve for x
    x = 95,026,267,188.92/355,076.34
  6. Step 6: Final answer
    x = 267,622.07

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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.