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Finding the Fourth Proportional to 240.36, 360.40 and 112

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Solution

The fourth proportional to 240.36, 360.40 and 112 is: 167.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.36 : 360.40 = 112 : x
  2. Step 2: Convert to fraction form
    240.36/360.40 = 112/x
  3. Step 3: Cross multiply
    240.36x = 360.40 × 112
  4. Step 4: Simplify right side
    240.36x = 40,364.80
  5. Step 5: Solve for x
    x = 40,364.80/240.36
  6. Step 6: Final answer
    x = 167.93

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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.