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Finding the Fourth Proportional to 162.67, 224.66 and 107.59

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Solution

The fourth proportional to 162.67, 224.66 and 107.59 is: 148.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.67 : 224.66 = 107.59 : x
  2. Step 2: Convert to fraction form
    162.67/224.66 = 107.59/x
  3. Step 3: Cross multiply
    162.67x = 224.66 × 107.59
  4. Step 4: Simplify right side
    162.67x = 24,169.51
  5. Step 5: Solve for x
    x = 24,169.51/162.67
  6. Step 6: Final answer
    x = 148.58

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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.