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Finding the Fourth Proportional to 111,285.20, 166,798.20 and 44,692.40

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Solution

The fourth proportional to 111,285.20, 166,798.20 and 44,692.40 is: 66,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,285.20 : 166,798.20 = 44,692.40 : x
  2. Step 2: Convert to fraction form
    111,285.20/166,798.20 = 44,692.40/x
  3. Step 3: Cross multiply
    111,285.20x = 166,798.20 × 44,692.40
  4. Step 4: Simplify right side
    111,285.20x = 7,454,611,873.68
  5. Step 5: Solve for x
    x = 7,454,611,873.68/111,285.20
  6. Step 6: Final answer
    x = 66,986.55

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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.