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Finding the Fourth Proportional to 353,936.64, 488,436.83 and 192,793.01

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Solution

The fourth proportional to 353,936.64, 488,436.83 and 192,793.01 is: 266,056.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,936.64 : 488,436.83 = 192,793.01 : x
  2. Step 2: Convert to fraction form
    353,936.64/488,436.83 = 192,793.01/x
  3. Step 3: Cross multiply
    353,936.64x = 488,436.83 × 192,793.01
  4. Step 4: Simplify right side
    353,936.64x = 94,167,206,650.56
  5. Step 5: Solve for x
    x = 94,167,206,650.56/353,936.64
  6. Step 6: Final answer
    x = 266,056.68

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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.