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Finding the Fourth Proportional to 192.42, 265.50 and 114.84

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Solution

The fourth proportional to 192.42, 265.50 and 114.84 is: 158.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.42 : 265.50 = 114.84 : x
  2. Step 2: Convert to fraction form
    192.42/265.50 = 114.84/x
  3. Step 3: Cross multiply
    192.42x = 265.50 × 114.84
  4. Step 4: Simplify right side
    192.42x = 30,490.02
  5. Step 5: Solve for x
    x = 30,490.02/192.42
  6. Step 6: Final answer
    x = 158.46

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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.