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Finding the Fourth Proportional to 152.22, 228.30 and 44

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Solution

The fourth proportional to 152.22, 228.30 and 44 is: 65.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.22 : 228.30 = 44 : x
  2. Step 2: Convert to fraction form
    152.22/228.30 = 44/x
  3. Step 3: Cross multiply
    152.22x = 228.30 × 44
  4. Step 4: Simplify right side
    152.22x = 10,045.20
  5. Step 5: Solve for x
    x = 10,045.20/152.22
  6. Step 6: Final answer
    x = 65.99

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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.