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Finding the Fourth Proportional to 110,692.80, 166,039.20 and 36,820.80

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Solution

The fourth proportional to 110,692.80, 166,039.20 and 36,820.80 is: 55,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,692.80 : 166,039.20 = 36,820.80 : x
  2. Step 2: Convert to fraction form
    110,692.80/166,039.20 = 36,820.80/x
  3. Step 3: Cross multiply
    110,692.80x = 166,039.20 × 36,820.80
  4. Step 4: Simplify right side
    110,692.80x = 6,113,696,175.36
  5. Step 5: Solve for x
    x = 6,113,696,175.36/110,692.80
  6. Step 6: Final answer
    x = 55,231.20

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1.5x scale

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.