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Finding the Fourth Proportional to 90,592.70, 135,942.52 and 34,480.06

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Solution

The fourth proportional to 90,592.70, 135,942.52 and 34,480.06 is: 51,740.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,592.70 : 135,942.52 = 34,480.06 : x
  2. Step 2: Convert to fraction form
    90,592.70/135,942.52 = 34,480.06/x
  3. Step 3: Cross multiply
    90,592.70x = 135,942.52 × 34,480.06
  4. Step 4: Simplify right side
    90,592.70x = 4,687,306,246.15
  5. Step 5: Solve for x
    x = 4,687,306,246.15/90,592.70
  6. Step 6: Final answer
    x = 51,740.44

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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.