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Finding the Fourth Proportional to 104.84, 156.61 and 101.48

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Solution

The fourth proportional to 104.84, 156.61 and 101.48 is: 151.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104.84 : 156.61 = 101.48 : x
  2. Step 2: Convert to fraction form
    104.84/156.61 = 101.48/x
  3. Step 3: Cross multiply
    104.84x = 156.61 × 101.48
  4. Step 4: Simplify right side
    104.84x = 15,892.78
  5. Step 5: Solve for x
    x = 15,892.78/104.84
  6. Step 6: Final answer
    x = 151.59

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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.