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Finding the Fourth Proportional to 136,692.72, 205,048.89 and 41,910.60

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Solution

The fourth proportional to 136,692.72, 205,048.89 and 41,910.60 is: 62,868.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,692.72 : 205,048.89 = 41,910.60 : x
  2. Step 2: Convert to fraction form
    136,692.72/205,048.89 = 41,910.60/x
  3. Step 3: Cross multiply
    136,692.72x = 205,048.89 × 41,910.60
  4. Step 4: Simplify right side
    136,692.72x = 8,593,722,009.23
  5. Step 5: Solve for x
    x = 8,593,722,009.23/136,692.72
  6. Step 6: Final answer
    x = 62,868.91

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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.