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Finding the Fourth Proportional to 104.49, 156.76 and 36.02

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Solution

The fourth proportional to 104.49, 156.76 and 36.02 is: 54.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    104.49 : 156.76 = 36.02 : x
  2. Step 2: Convert to fraction form
    104.49/156.76 = 36.02/x
  3. Step 3: Cross multiply
    104.49x = 156.76 × 36.02
  4. Step 4: Simplify right side
    104.49x = 5,646.50
  5. Step 5: Solve for x
    x = 5,646.50/104.49
  6. Step 6: Final answer
    x = 54.04

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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.