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Finding the Fourth Proportional to 103,993.46, 155,990.16 and 33,872.76

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Solution

The fourth proportional to 103,993.46, 155,990.16 and 33,872.76 is: 50,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,993.46 : 155,990.16 = 33,872.76 : x
  2. Step 2: Convert to fraction form
    103,993.46/155,990.16 = 33,872.76/x
  3. Step 3: Cross multiply
    103,993.46x = 155,990.16 × 33,872.76
  4. Step 4: Simplify right side
    103,993.46x = 5,283,817,252.04
  5. Step 5: Solve for x
    x = 5,283,817,252.04/103,993.46
  6. Step 6: Final answer
    x = 50,809.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.