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Finding the Fourth Proportional to 263.14, 363.16 and 152.64

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Solution

The fourth proportional to 263.14, 363.16 and 152.64 is: 210.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.14 : 363.16 = 152.64 : x
  2. Step 2: Convert to fraction form
    263.14/363.16 = 152.64/x
  3. Step 3: Cross multiply
    263.14x = 363.16 × 152.64
  4. Step 4: Simplify right side
    263.14x = 55,432.74
  5. Step 5: Solve for x
    x = 55,432.74/263.14
  6. Step 6: Final answer
    x = 210.66

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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.