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Finding the Fourth Proportional to 223,861.20, 335,791.80 and 74,124.60

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Solution

The fourth proportional to 223,861.20, 335,791.80 and 74,124.60 is: 111,186.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,861.20 : 335,791.80 = 74,124.60 : x
  2. Step 2: Convert to fraction form
    223,861.20/335,791.80 = 74,124.60/x
  3. Step 3: Cross multiply
    223,861.20x = 335,791.80 × 74,124.60
  4. Step 4: Simplify right side
    223,861.20x = 24,890,432,858.28
  5. Step 5: Solve for x
    x = 24,890,432,858.28/223,861.20
  6. Step 6: Final answer
    x = 111,186.90

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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.