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Finding the Fourth Proportional to 69,116.88, 103,692.35 and 22,369.75

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Solution

The fourth proportional to 69,116.88, 103,692.35 and 22,369.75 is: 33,560.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,116.88 : 103,692.35 = 22,369.75 : x
  2. Step 2: Convert to fraction form
    69,116.88/103,692.35 = 22,369.75/x
  3. Step 3: Cross multiply
    69,116.88x = 103,692.35 × 22,369.75
  4. Step 4: Simplify right side
    69,116.88x = 2,319,571,834.56
  5. Step 5: Solve for x
    x = 2,319,571,834.56/69,116.88
  6. Step 6: Final answer
    x = 33,560.14

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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.