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Finding the Fourth Proportional to 90,794.34, 125,281.68 and 50,508

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Solution

The fourth proportional to 90,794.34, 125,281.68 and 50,508 is: 69,692.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,794.34 : 125,281.68 = 50,508 : x
  2. Step 2: Convert to fraction form
    90,794.34/125,281.68 = 50,508/x
  3. Step 3: Cross multiply
    90,794.34x = 125,281.68 × 50,508
  4. Step 4: Simplify right side
    90,794.34x = 6,327,727,093.44
  5. Step 5: Solve for x
    x = 6,327,727,093.44/90,794.34
  6. Step 6: Final answer
    x = 69,692.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.