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Finding the Fourth Proportional to 85,221.92, 127,832.87 and 32,631.41

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Solution

The fourth proportional to 85,221.92, 127,832.87 and 32,631.41 is: 48,947.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,221.92 : 127,832.87 = 32,631.41 : x
  2. Step 2: Convert to fraction form
    85,221.92/127,832.87 = 32,631.41/x
  3. Step 3: Cross multiply
    85,221.92x = 127,832.87 × 32,631.41
  4. Step 4: Simplify right side
    85,221.92x = 4,171,366,291.00
  5. Step 5: Solve for x
    x = 4,171,366,291.00/85,221.92
  6. Step 6: Final answer
    x = 48,947.10

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Similar ratio
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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.