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Finding the Fourth Proportional to 262.74, 394.67 and 160.08

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Solution

The fourth proportional to 262.74, 394.67 and 160.08 is: 240.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.74 : 394.67 = 160.08 : x
  2. Step 2: Convert to fraction form
    262.74/394.67 = 160.08/x
  3. Step 3: Cross multiply
    262.74x = 394.67 × 160.08
  4. Step 4: Simplify right side
    262.74x = 63,178.77
  5. Step 5: Solve for x
    x = 63,178.77/262.74
  6. Step 6: Final answer
    x = 240.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.