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Finding the Fourth Proportional to 240, 360.16 and 88

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Solution

The fourth proportional to 240, 360.16 and 88 is: 132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    240 : 360.16 = 88 : x
  2. Step 2: Convert to fraction form
    240/360.16 = 88/x
  3. Step 3: Cross multiply
    240x = 360.16 × 88
  4. Step 4: Simplify right side
    240x = 31,694.08
  5. Step 5: Solve for x
    x = 31,694.08/240
  6. Step 6: Final answer
    x = 132.06

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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.