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Finding the Fourth Proportional to 308,647.38, 463,015.43 and 95,431.92

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Solution

The fourth proportional to 308,647.38, 463,015.43 and 95,431.92 is: 143,161.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,647.38 : 463,015.43 = 95,431.92 : x
  2. Step 2: Convert to fraction form
    308,647.38/463,015.43 = 95,431.92/x
  3. Step 3: Cross multiply
    308,647.38x = 463,015.43 × 95,431.92
  4. Step 4: Simplify right side
    308,647.38x = 44,186,450,997.37
  5. Step 5: Solve for x
    x = 44,186,450,997.37/308,647.38
  6. Step 6: Final answer
    x = 143,161.59

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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.