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Finding the Fourth Proportional to 85,093.74, 127,680.30 and 32,485.86

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Solution

The fourth proportional to 85,093.74, 127,680.30 and 32,485.86 is: 48,743.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,093.74 : 127,680.30 = 32,485.86 : x
  2. Step 2: Convert to fraction form
    85,093.74/127,680.30 = 32,485.86/x
  3. Step 3: Cross multiply
    85,093.74x = 127,680.30 × 32,485.86
  4. Step 4: Simplify right side
    85,093.74x = 4,147,804,350.56
  5. Step 5: Solve for x
    x = 4,147,804,350.56/85,093.74
  6. Step 6: Final answer
    x = 48,743.94

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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.