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Finding the Fourth Proportional to 116.04, 160.14 and 66.92

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Solution

The fourth proportional to 116.04, 160.14 and 66.92 is: 92.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.04 : 160.14 = 66.92 : x
  2. Step 2: Convert to fraction form
    116.04/160.14 = 66.92/x
  3. Step 3: Cross multiply
    116.04x = 160.14 × 66.92
  4. Step 4: Simplify right side
    116.04x = 10,715.43
  5. Step 5: Solve for x
    x = 10,715.43/116.04
  6. Step 6: Final answer
    x = 92.35

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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.