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Finding the Fourth Proportional to 91,622.40, 137,414.40 and 44,908.80

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Solution

The fourth proportional to 91,622.40, 137,414.40 and 44,908.80 is: 67,353.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,622.40 : 137,414.40 = 44,908.80 : x
  2. Step 2: Convert to fraction form
    91,622.40/137,414.40 = 44,908.80/x
  3. Step 3: Cross multiply
    91,622.40x = 137,414.40 × 44,908.80
  4. Step 4: Simplify right side
    91,622.40x = 6,171,115,806.72
  5. Step 5: Solve for x
    x = 6,171,115,806.72/91,622.40
  6. Step 6: Final answer
    x = 67,353.79

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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.