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Finding the Fourth Proportional to 303,469.70, 455,253.79 and 113,944.98

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Solution

The fourth proportional to 303,469.70, 455,253.79 and 113,944.98 is: 170,935.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,469.70 : 455,253.79 = 113,944.98 : x
  2. Step 2: Convert to fraction form
    303,469.70/455,253.79 = 113,944.98/x
  3. Step 3: Cross multiply
    303,469.70x = 455,253.79 × 113,944.98
  4. Step 4: Simplify right side
    303,469.70x = 51,873,883,996.47
  5. Step 5: Solve for x
    x = 51,873,883,996.47/303,469.70
  6. Step 6: Final answer
    x = 170,935.96

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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.