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Finding the Fourth Proportional to 263.16, 363.20 and 152.67

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Solution

The fourth proportional to 263.16, 363.20 and 152.67 is: 210.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.16 : 363.20 = 152.67 : x
  2. Step 2: Convert to fraction form
    263.16/363.20 = 152.67/x
  3. Step 3: Cross multiply
    263.16x = 363.20 × 152.67
  4. Step 4: Simplify right side
    263.16x = 55,448.98
  5. Step 5: Solve for x
    x = 55,448.98/263.16
  6. Step 6: Final answer
    x = 210.70

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.