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Finding the Fourth Proportional to 265.12, 365.77 and 160.13

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Solution

The fourth proportional to 265.12, 365.77 and 160.13 is: 220.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.12 : 365.77 = 160.13 : x
  2. Step 2: Convert to fraction form
    265.12/365.77 = 160.13/x
  3. Step 3: Cross multiply
    265.12x = 365.77 × 160.13
  4. Step 4: Simplify right side
    265.12x = 58,568.12
  5. Step 5: Solve for x
    x = 58,568.12/265.12
  6. Step 6: Final answer
    x = 220.92

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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.