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Finding the Fourth Proportional to 116.02, 174 and 68.23

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Solution

The fourth proportional to 116.02, 174 and 68.23 is: 102.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.02 : 174 = 68.23 : x
  2. Step 2: Convert to fraction form
    116.02/174 = 68.23/x
  3. Step 3: Cross multiply
    116.02x = 174 × 68.23
  4. Step 4: Simplify right side
    116.02x = 11,871.15
  5. Step 5: Solve for x
    x = 11,871.15/116.02
  6. Step 6: Final answer
    x = 102.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.