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Finding the Fourth Proportional to 80,850.76, 111,575.20 and 46,861.60

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Solution

The fourth proportional to 80,850.76, 111,575.20 and 46,861.60 is: 64,669.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,850.76 : 111,575.20 = 46,861.60 : x
  2. Step 2: Convert to fraction form
    80,850.76/111,575.20 = 46,861.60/x
  3. Step 3: Cross multiply
    80,850.76x = 111,575.20 × 46,861.60
  4. Step 4: Simplify right side
    80,850.76x = 5,228,592,392.32
  5. Step 5: Solve for x
    x = 5,228,592,392.32/80,850.76
  6. Step 6: Final answer
    x = 64,669.68

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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.