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Finding the Fourth Proportional to 273,278.10, 409,870.62 and 73,553.97

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Solution

The fourth proportional to 273,278.10, 409,870.62 and 73,553.97 is: 110,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,278.10 : 409,870.62 = 73,553.97 : x
  2. Step 2: Convert to fraction form
    273,278.10/409,870.62 = 73,553.97/x
  3. Step 3: Cross multiply
    273,278.10x = 409,870.62 × 73,553.97
  4. Step 4: Simplify right side
    273,278.10x = 30,147,611,287.36
  5. Step 5: Solve for x
    x = 30,147,611,287.36/273,278.10
  6. Step 6: Final answer
    x = 110,318.43

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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.