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Finding the Fourth Proportional to 104.06, 156.14 and 46.28

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Solution

The fourth proportional to 104.06, 156.14 and 46.28 is: 69.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    104.06 : 156.14 = 46.28 : x
  2. Step 2: Convert to fraction form
    104.06/156.14 = 46.28/x
  3. Step 3: Cross multiply
    104.06x = 156.14 × 46.28
  4. Step 4: Simplify right side
    104.06x = 7,226.16
  5. Step 5: Solve for x
    x = 7,226.16/104.06
  6. Step 6: Final answer
    x = 69.44

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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.