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Finding the Fourth Proportional to 178,912.84, 268,265.56 and 73,612.84

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Solution

The fourth proportional to 178,912.84, 268,265.56 and 73,612.84 is: 110,376.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,912.84 : 268,265.56 = 73,612.84 : x
  2. Step 2: Convert to fraction form
    178,912.84/268,265.56 = 73,612.84/x
  3. Step 3: Cross multiply
    178,912.84x = 268,265.56 × 73,612.84
  4. Step 4: Simplify right side
    178,912.84x = 19,747,789,745.79
  5. Step 5: Solve for x
    x = 19,747,789,745.79/178,912.84
  6. Step 6: Final answer
    x = 110,376.59

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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.