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Finding the Fourth Proportional to 117,481.66, 162,124.85 and 63,766.68

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Solution

The fourth proportional to 117,481.66, 162,124.85 and 63,766.68 is: 87,998.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,481.66 : 162,124.85 = 63,766.68 : x
  2. Step 2: Convert to fraction form
    117,481.66/162,124.85 = 63,766.68/x
  3. Step 3: Cross multiply
    117,481.66x = 162,124.85 × 63,766.68
  4. Step 4: Simplify right side
    117,481.66x = 10,338,163,835.31
  5. Step 5: Solve for x
    x = 10,338,163,835.31/117,481.66
  6. Step 6: Final answer
    x = 87,998.11

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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.