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Finding the Fourth Proportional to 263.99, 364.29 and 153.48

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Solution

The fourth proportional to 263.99, 364.29 and 153.48 is: 211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.99 : 364.29 = 153.48 : x
  2. Step 2: Convert to fraction form
    263.99/364.29 = 153.48/x
  3. Step 3: Cross multiply
    263.99x = 364.29 × 153.48
  4. Step 4: Simplify right side
    263.99x = 55,911.23
  5. Step 5: Solve for x
    x = 55,911.23/263.99
  6. Step 6: Final answer
    x = 211.80

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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.