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Finding the Fourth Proportional to 82,128.56, 123,192.84 and 32,846

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Solution

The fourth proportional to 82,128.56, 123,192.84 and 32,846 is: 49,269

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,128.56 : 123,192.84 = 32,846 : x
  2. Step 2: Convert to fraction form
    82,128.56/123,192.84 = 32,846/x
  3. Step 3: Cross multiply
    82,128.56x = 123,192.84 × 32,846
  4. Step 4: Simplify right side
    82,128.56x = 4,046,392,022.64
  5. Step 5: Solve for x
    x = 4,046,392,022.64/82,128.56
  6. Step 6: Final answer
    x = 49,269

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.