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Finding the Fourth Proportional to 85,099.01, 127,653.32 and 25,936.61

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Solution

The fourth proportional to 85,099.01, 127,653.32 and 25,936.61 is: 38,906.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,099.01 : 127,653.32 = 25,936.61 : x
  2. Step 2: Convert to fraction form
    85,099.01/127,653.32 = 25,936.61/x
  3. Step 3: Cross multiply
    85,099.01x = 127,653.32 × 25,936.61
  4. Step 4: Simplify right side
    85,099.01x = 3,310,894,376.05
  5. Step 5: Solve for x
    x = 3,310,894,376.05/85,099.01
  6. Step 6: Final answer
    x = 38,906.38

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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.