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Finding the Fourth Proportional to 74,469.80, 111,704.70 and 73,951.40

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Solution

The fourth proportional to 74,469.80, 111,704.70 and 73,951.40 is: 110,927.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,469.80 : 111,704.70 = 73,951.40 : x
  2. Step 2: Convert to fraction form
    74,469.80/111,704.70 = 73,951.40/x
  3. Step 3: Cross multiply
    74,469.80x = 111,704.70 × 73,951.40
  4. Step 4: Simplify right side
    74,469.80x = 8,260,718,951.58
  5. Step 5: Solve for x
    x = 8,260,718,951.58/74,469.80
  6. Step 6: Final answer
    x = 110,927.10

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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.