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Finding the Fourth Proportional to 120,692.63, 166,551.59 and 66,976.27

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Solution

The fourth proportional to 120,692.63, 166,551.59 and 66,976.27 is: 92,424.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,692.63 : 166,551.59 = 66,976.27 : x
  2. Step 2: Convert to fraction form
    120,692.63/166,551.59 = 66,976.27/x
  3. Step 3: Cross multiply
    120,692.63x = 166,551.59 × 66,976.27
  4. Step 4: Simplify right side
    120,692.63x = 11,155,004,011.83
  5. Step 5: Solve for x
    x = 11,155,004,011.83/120,692.63
  6. Step 6: Final answer
    x = 92,424.90

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1.5x scale

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.