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Finding the Fourth Proportional to 190.04, 262 and 154.94

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Solution

The fourth proportional to 190.04, 262 and 154.94 is: 213.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.04 : 262 = 154.94 : x
  2. Step 2: Convert to fraction form
    190.04/262 = 154.94/x
  3. Step 3: Cross multiply
    190.04x = 262 × 154.94
  4. Step 4: Simplify right side
    190.04x = 40,594.28
  5. Step 5: Solve for x
    x = 40,594.28/190.04
  6. Step 6: Final answer
    x = 213.61

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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.