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Finding the Fourth Proportional to 110,620.20, 165,930.30 and 40,506.60

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Solution

The fourth proportional to 110,620.20, 165,930.30 and 40,506.60 is: 60,759.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,620.20 : 165,930.30 = 40,506.60 : x
  2. Step 2: Convert to fraction form
    110,620.20/165,930.30 = 40,506.60/x
  3. Step 3: Cross multiply
    110,620.20x = 165,930.30 × 40,506.60
  4. Step 4: Simplify right side
    110,620.20x = 6,721,272,289.98
  5. Step 5: Solve for x
    x = 6,721,272,289.98/110,620.20
  6. Step 6: Final answer
    x = 60,759.90

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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.