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Finding the Fourth Proportional to 300,942.16, 451,608.96 and 130,330.48

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Solution

The fourth proportional to 300,942.16, 451,608.96 and 130,330.48 is: 195,580.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,942.16 : 451,608.96 = 130,330.48 : x
  2. Step 2: Convert to fraction form
    300,942.16/451,608.96 = 130,330.48/x
  3. Step 3: Cross multiply
    300,942.16x = 451,608.96 × 130,330.48
  4. Step 4: Simplify right side
    300,942.16x = 58,858,412,529.10
  5. Step 5: Solve for x
    x = 58,858,412,529.10/300,942.16
  6. Step 6: Final answer
    x = 195,580.48

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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.