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Finding the Fourth Proportional to 116.12, 160.26 and 67.00

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Solution

The fourth proportional to 116.12, 160.26 and 67.00 is: 92.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.12 : 160.26 = 67.00 : x
  2. Step 2: Convert to fraction form
    116.12/160.26 = 67.00/x
  3. Step 3: Cross multiply
    116.12x = 160.26 × 67.00
  4. Step 4: Simplify right side
    116.12x = 10,737.02
  5. Step 5: Solve for x
    x = 10,737.02/116.12
  6. Step 6: Final answer
    x = 92.47

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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.