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Finding the Fourth Proportional to 264.27, 364.68 and 153.69

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Solution

The fourth proportional to 264.27, 364.68 and 153.69 is: 212.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.27 : 364.68 = 153.69 : x
  2. Step 2: Convert to fraction form
    264.27/364.68 = 153.69/x
  3. Step 3: Cross multiply
    264.27x = 364.68 × 153.69
  4. Step 4: Simplify right side
    264.27x = 56,047.67
  5. Step 5: Solve for x
    x = 56,047.67/264.27
  6. Step 6: Final answer
    x = 212.08

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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.