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Finding the Fourth Proportional to 265.74, 366.69 and 160.83

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Solution

The fourth proportional to 265.74, 366.69 and 160.83 is: 221.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.74 : 366.69 = 160.83 : x
  2. Step 2: Convert to fraction form
    265.74/366.69 = 160.83/x
  3. Step 3: Cross multiply
    265.74x = 366.69 × 160.83
  4. Step 4: Simplify right side
    265.74x = 58,974.75
  5. Step 5: Solve for x
    x = 58,974.75/265.74
  6. Step 6: Final answer
    x = 221.93

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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.