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Finding the Fourth Proportional to 246.39, 339.98 and 148.13

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Solution

The fourth proportional to 246.39, 339.98 and 148.13 is: 204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.39 : 339.98 = 148.13 : x
  2. Step 2: Convert to fraction form
    246.39/339.98 = 148.13/x
  3. Step 3: Cross multiply
    246.39x = 339.98 × 148.13
  4. Step 4: Simplify right side
    246.39x = 50,361.24
  5. Step 5: Solve for x
    x = 50,361.24/246.39
  6. Step 6: Final answer
    x = 204.40

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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.