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Finding the Fourth Proportional to 109,692.39, 151,375.74 and 59,391.39

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Solution

The fourth proportional to 109,692.39, 151,375.74 and 59,391.39 is: 81,960.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,692.39 : 151,375.74 = 59,391.39 : x
  2. Step 2: Convert to fraction form
    109,692.39/151,375.74 = 59,391.39/x
  3. Step 3: Cross multiply
    109,692.39x = 151,375.74 × 59,391.39
  4. Step 4: Simplify right side
    109,692.39x = 8,990,415,610.88
  5. Step 5: Solve for x
    x = 8,990,415,610.88/109,692.39
  6. Step 6: Final answer
    x = 81,960.25

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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.