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Finding the Fourth Proportional to 192.90, 266.21 and 110.01

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Solution

The fourth proportional to 192.90, 266.21 and 110.01 is: 151.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.90 : 266.21 = 110.01 : x
  2. Step 2: Convert to fraction form
    192.90/266.21 = 110.01/x
  3. Step 3: Cross multiply
    192.90x = 266.21 × 110.01
  4. Step 4: Simplify right side
    192.90x = 29,284.55
  5. Step 5: Solve for x
    x = 29,284.55/192.90
  6. Step 6: Final answer
    x = 151.81

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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.