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Finding the Fourth Proportional to 169,518.72, 254,320 and 119,696.44

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Solution

The fourth proportional to 169,518.72, 254,320 and 119,696.44 is: 179,574.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,518.72 : 254,320 = 119,696.44 : x
  2. Step 2: Convert to fraction form
    169,518.72/254,320 = 119,696.44/x
  3. Step 3: Cross multiply
    169,518.72x = 254,320 × 119,696.44
  4. Step 4: Simplify right side
    169,518.72x = 30,441,198,620.80
  5. Step 5: Solve for x
    x = 30,441,198,620.80/169,518.72
  6. Step 6: Final answer
    x = 179,574.26

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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.