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Finding the Fourth Proportional to 169,707.45, 254,616.48 and 80,949.42

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Solution

The fourth proportional to 169,707.45, 254,616.48 and 80,949.42 is: 121,450.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,707.45 : 254,616.48 = 80,949.42 : x
  2. Step 2: Convert to fraction form
    169,707.45/254,616.48 = 80,949.42/x
  3. Step 3: Cross multiply
    169,707.45x = 254,616.48 × 80,949.42
  4. Step 4: Simplify right side
    169,707.45x = 20,611,056,378.44
  5. Step 5: Solve for x
    x = 20,611,056,378.44/169,707.45
  6. Step 6: Final answer
    x = 121,450.51

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1.5x scale

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.