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Finding the Fourth Proportional to 246.54, 340.22 and 136

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Solution

The fourth proportional to 246.54, 340.22 and 136 is: 187.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.54 : 340.22 = 136 : x
  2. Step 2: Convert to fraction form
    246.54/340.22 = 136/x
  3. Step 3: Cross multiply
    246.54x = 340.22 × 136
  4. Step 4: Simplify right side
    246.54x = 46,269.92
  5. Step 5: Solve for x
    x = 46,269.92/246.54
  6. Step 6: Final answer
    x = 187.68

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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.