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Finding the Fourth Proportional to 86,673, 119,618.46 and 48,949.68

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Solution

The fourth proportional to 86,673, 119,618.46 and 48,949.68 is: 67,556.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,673 : 119,618.46 = 48,949.68 : x
  2. Step 2: Convert to fraction form
    86,673/119,618.46 = 48,949.68/x
  3. Step 3: Cross multiply
    86,673x = 119,618.46 × 48,949.68
  4. Step 4: Simplify right side
    86,673x = 5,855,285,339.09
  5. Step 5: Solve for x
    x = 5,855,285,339.09/86,673
  6. Step 6: Final answer
    x = 67,556.05

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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.