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Finding the Fourth Proportional to 113.66, 170.50 and 62.22

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Solution

The fourth proportional to 113.66, 170.50 and 62.22 is: 93.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.66 : 170.50 = 62.22 : x
  2. Step 2: Convert to fraction form
    113.66/170.50 = 62.22/x
  3. Step 3: Cross multiply
    113.66x = 170.50 × 62.22
  4. Step 4: Simplify right side
    113.66x = 10,608.51
  5. Step 5: Solve for x
    x = 10,608.51/113.66
  6. Step 6: Final answer
    x = 93.34

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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.