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Finding the Fourth Proportional to 264.65, 364.70 and 186.89

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Solution

The fourth proportional to 264.65, 364.70 and 186.89 is: 257.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.65 : 364.70 = 186.89 : x
  2. Step 2: Convert to fraction form
    264.65/364.70 = 186.89/x
  3. Step 3: Cross multiply
    264.65x = 364.70 × 186.89
  4. Step 4: Simplify right side
    264.65x = 68,157.43
  5. Step 5: Solve for x
    x = 68,157.43/264.65
  6. Step 6: Final answer
    x = 257.54

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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.