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Finding the Fourth Proportional to 113.44, 156.10 and 110.10

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Solution

The fourth proportional to 113.44, 156.10 and 110.10 is: 151.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.44 : 156.10 = 110.10 : x
  2. Step 2: Convert to fraction form
    113.44/156.10 = 110.10/x
  3. Step 3: Cross multiply
    113.44x = 156.10 × 110.10
  4. Step 4: Simplify right side
    113.44x = 17,186.61
  5. Step 5: Solve for x
    x = 17,186.61/113.44
  6. Step 6: Final answer
    x = 151.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.