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Finding the Fourth Proportional to 273,635.40, 409,761.90 and 179,632.20

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Solution

The fourth proportional to 273,635.40, 409,761.90 and 179,632.20 is: 268,994.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,635.40 : 409,761.90 = 179,632.20 : x
  2. Step 2: Convert to fraction form
    273,635.40/409,761.90 = 179,632.20/x
  3. Step 3: Cross multiply
    273,635.40x = 409,761.90 × 179,632.20
  4. Step 4: Simplify right side
    273,635.40x = 73,606,431,573.18
  5. Step 5: Solve for x
    x = 73,606,431,573.18/273,635.40
  6. Step 6: Final answer
    x = 268,994.55

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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.