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Finding the Fourth Proportional to 117,635.52, 162,338.05 and 63,920.54

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Solution

The fourth proportional to 117,635.52, 162,338.05 and 63,920.54 is: 88,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,635.52 : 162,338.05 = 63,920.54 : x
  2. Step 2: Convert to fraction form
    117,635.52/162,338.05 = 63,920.54/x
  3. Step 3: Cross multiply
    117,635.52x = 162,338.05 × 63,920.54
  4. Step 4: Simplify right side
    117,635.52x = 10,376,735,847.72
  5. Step 5: Solve for x
    x = 10,376,735,847.72/117,635.52
  6. Step 6: Final answer
    x = 88,210.90

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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.