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Finding the Fourth Proportional to 262, 362 and 188.18

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Solution

The fourth proportional to 262, 362 and 188.18 is: 260.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    262 : 362 = 188.18 : x
  2. Step 2: Convert to fraction form
    262/362 = 188.18/x
  3. Step 3: Cross multiply
    262x = 362 × 188.18
  4. Step 4: Simplify right side
    262x = 68,121.16
  5. Step 5: Solve for x
    x = 68,121.16/262
  6. Step 6: Final answer
    x = 260.00

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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.