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Finding the Fourth Proportional to 74,144.70, 110,957.85 and 67,923.90

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Solution

The fourth proportional to 74,144.70, 110,957.85 and 67,923.90 is: 101,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,144.70 : 110,957.85 = 67,923.90 : x
  2. Step 2: Convert to fraction form
    74,144.70/110,957.85 = 67,923.90/x
  3. Step 3: Cross multiply
    74,144.70x = 110,957.85 × 67,923.90
  4. Step 4: Simplify right side
    74,144.70x = 7,536,689,907.62
  5. Step 5: Solve for x
    x = 7,536,689,907.62/74,144.70
  6. Step 6: Final answer
    x = 101,648.40

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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.