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Finding the Fourth Proportional to 77,806.64, 116,698.92 and 44,418.44

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Solution

The fourth proportional to 77,806.64, 116,698.92 and 44,418.44 is: 66,621.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,806.64 : 116,698.92 = 44,418.44 : x
  2. Step 2: Convert to fraction form
    77,806.64/116,698.92 = 44,418.44/x
  3. Step 3: Cross multiply
    77,806.64x = 116,698.92 × 44,418.44
  4. Step 4: Simplify right side
    77,806.64x = 5,183,583,976.08
  5. Step 5: Solve for x
    x = 5,183,583,976.08/77,806.64
  6. Step 6: Final answer
    x = 66,621.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.