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Finding the Fourth Proportional to 190.04, 262.06 and 124.48

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Solution

The fourth proportional to 190.04, 262.06 and 124.48 is: 171.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.04 : 262.06 = 124.48 : x
  2. Step 2: Convert to fraction form
    190.04/262.06 = 124.48/x
  3. Step 3: Cross multiply
    190.04x = 262.06 × 124.48
  4. Step 4: Simplify right side
    190.04x = 32,621.23
  5. Step 5: Solve for x
    x = 32,621.23/190.04
  6. Step 6: Final answer
    x = 171.65

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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.