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Finding the Fourth Proportional to 103,469.60, 155,240.85 and 50,843.90

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Solution

The fourth proportional to 103,469.60, 155,240.85 and 50,843.90 is: 76,283.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,469.60 : 155,240.85 = 50,843.90 : x
  2. Step 2: Convert to fraction form
    103,469.60/155,240.85 = 50,843.90/x
  3. Step 3: Cross multiply
    103,469.60x = 155,240.85 × 50,843.90
  4. Step 4: Simplify right side
    103,469.60x = 7,893,050,253.32
  5. Step 5: Solve for x
    x = 7,893,050,253.32/103,469.60
  6. Step 6: Final answer
    x = 76,283.76

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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.