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Finding the Fourth Proportional to 264.19, 364.48 and 153.63

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Solution

The fourth proportional to 264.19, 364.48 and 153.63 is: 211.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.19 : 364.48 = 153.63 : x
  2. Step 2: Convert to fraction form
    264.19/364.48 = 153.63/x
  3. Step 3: Cross multiply
    264.19x = 364.48 × 153.63
  4. Step 4: Simplify right side
    264.19x = 55,993.24
  5. Step 5: Solve for x
    x = 55,993.24/264.19
  6. Step 6: Final answer
    x = 211.94

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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.