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Finding the Fourth Proportional to 240.54, 360.90 and 96.36

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Solution

The fourth proportional to 240.54, 360.90 and 96.36 is: 144.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.54 : 360.90 = 96.36 : x
  2. Step 2: Convert to fraction form
    240.54/360.90 = 96.36/x
  3. Step 3: Cross multiply
    240.54x = 360.90 × 96.36
  4. Step 4: Simplify right side
    240.54x = 34,774.28
  5. Step 5: Solve for x
    x = 34,774.28/240.54
  6. Step 6: Final answer
    x = 144.57

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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.