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Finding the Fourth Proportional to 264.16, 364.47 and 153.64

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Solution

The fourth proportional to 264.16, 364.47 and 153.64 is: 211.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.16 : 364.47 = 153.64 : x
  2. Step 2: Convert to fraction form
    264.16/364.47 = 153.64/x
  3. Step 3: Cross multiply
    264.16x = 364.47 × 153.64
  4. Step 4: Simplify right side
    264.16x = 55,997.17
  5. Step 5: Solve for x
    x = 55,997.17/264.16
  6. Step 6: Final answer
    x = 211.98

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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.