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Finding the Fourth Proportional to 117,703.92, 162,434.58 and 63,992.54

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Solution

The fourth proportional to 117,703.92, 162,434.58 and 63,992.54 is: 88,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,703.92 : 162,434.58 = 63,992.54 : x
  2. Step 2: Convert to fraction form
    117,703.92/162,434.58 = 63,992.54/x
  3. Step 3: Cross multiply
    117,703.92x = 162,434.58 × 63,992.54
  4. Step 4: Simplify right side
    117,703.92x = 10,394,601,358.03
  5. Step 5: Solve for x
    x = 10,394,601,358.03/117,703.92
  6. Step 6: Final answer
    x = 88,311.43

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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.