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Finding the Fourth Proportional to 262.79, 362.64 and 146.35

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Solution

The fourth proportional to 262.79, 362.64 and 146.35 is: 201.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.79 : 362.64 = 146.35 : x
  2. Step 2: Convert to fraction form
    262.79/362.64 = 146.35/x
  3. Step 3: Cross multiply
    262.79x = 362.64 × 146.35
  4. Step 4: Simplify right side
    262.79x = 53,072.36
  5. Step 5: Solve for x
    x = 53,072.36/262.79
  6. Step 6: Final answer
    x = 201.96

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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.