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Finding the Fourth Proportional to 117,494.28, 162,142.08 and 67,193.28

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Solution

The fourth proportional to 117,494.28, 162,142.08 and 67,193.28 is: 92,726.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,494.28 : 162,142.08 = 67,193.28 : x
  2. Step 2: Convert to fraction form
    117,494.28/162,142.08 = 67,193.28/x
  3. Step 3: Cross multiply
    117,494.28x = 162,142.08 × 67,193.28
  4. Step 4: Simplify right side
    117,494.28x = 10,894,858,181.22
  5. Step 5: Solve for x
    x = 10,894,858,181.22/117,494.28
  6. Step 6: Final answer
    x = 92,726.71

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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.