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Finding the Fourth Proportional to 122,885.60, 184,231.20 and 67,481.60

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Solution

The fourth proportional to 122,885.60, 184,231.20 and 67,481.60 is: 101,169.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,885.60 : 184,231.20 = 67,481.60 : x
  2. Step 2: Convert to fraction form
    122,885.60/184,231.20 = 67,481.60/x
  3. Step 3: Cross multiply
    122,885.60x = 184,231.20 × 67,481.60
  4. Step 4: Simplify right side
    122,885.60x = 12,432,216,145.92
  5. Step 5: Solve for x
    x = 12,432,216,145.92/122,885.60
  6. Step 6: Final answer
    x = 101,169.02

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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.