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Finding the Fourth Proportional to 80,321.76, 110,820.24 and 48,477.60

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Solution

The fourth proportional to 80,321.76, 110,820.24 and 48,477.60 is: 66,884.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,321.76 : 110,820.24 = 48,477.60 : x
  2. Step 2: Convert to fraction form
    80,321.76/110,820.24 = 48,477.60/x
  3. Step 3: Cross multiply
    80,321.76x = 110,820.24 × 48,477.60
  4. Step 4: Simplify right side
    80,321.76x = 5,372,299,266.62
  5. Step 5: Solve for x
    x = 5,372,299,266.62/80,321.76
  6. Step 6: Final answer
    x = 66,884.73

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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.