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Finding the Fourth Proportional to 117,481.50, 162,124.65 and 67,181.58

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Solution

The fourth proportional to 117,481.50, 162,124.65 and 67,181.58 is: 92,710.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,481.50 : 162,124.65 = 67,181.58 : x
  2. Step 2: Convert to fraction form
    117,481.50/162,124.65 = 67,181.58/x
  3. Step 3: Cross multiply
    117,481.50x = 162,124.65 × 67,181.58
  4. Step 4: Simplify right side
    117,481.50x = 10,891,790,143.95
  5. Step 5: Solve for x
    x = 10,891,790,143.95/117,481.50
  6. Step 6: Final answer
    x = 92,710.68

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1.5x scale

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.