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Finding the Fourth Proportional to 135,889.52, 187,497.34 and 82,173.41

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Solution

The fourth proportional to 135,889.52, 187,497.34 and 82,173.41 is: 113,381.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,889.52 : 187,497.34 = 82,173.41 : x
  2. Step 2: Convert to fraction form
    135,889.52/187,497.34 = 82,173.41/x
  3. Step 3: Cross multiply
    135,889.52x = 187,497.34 × 82,173.41
  4. Step 4: Simplify right side
    135,889.52x = 15,407,294,650.81
  5. Step 5: Solve for x
    x = 15,407,294,650.81/135,889.52
  6. Step 6: Final answer
    x = 113,381.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.