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Finding the Fourth Proportional to 177, 242.66 and 173.93

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Solution

The fourth proportional to 177, 242.66 and 173.93 is: 238.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    177 : 242.66 = 173.93 : x
  2. Step 2: Convert to fraction form
    177/242.66 = 173.93/x
  3. Step 3: Cross multiply
    177x = 242.66 × 173.93
  4. Step 4: Simplify right side
    177x = 42,203.77
  5. Step 5: Solve for x
    x = 42,203.77/177
  6. Step 6: Final answer
    x = 238.44

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.