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Finding the Fourth Proportional to 104.46, 156 and 99.06

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Solution

The fourth proportional to 104.46, 156 and 99.06 is: 147.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    104.46 : 156 = 99.06 : x
  2. Step 2: Convert to fraction form
    104.46/156 = 99.06/x
  3. Step 3: Cross multiply
    104.46x = 156 × 99.06
  4. Step 4: Simplify right side
    104.46x = 15,453.36
  5. Step 5: Solve for x
    x = 15,453.36/104.46
  6. Step 6: Final answer
    x = 147.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.