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Finding the Fourth Proportional to 114.22, 157.63 and 64.44

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Solution

The fourth proportional to 114.22, 157.63 and 64.44 is: 88.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.22 : 157.63 = 64.44 : x
  2. Step 2: Convert to fraction form
    114.22/157.63 = 64.44/x
  3. Step 3: Cross multiply
    114.22x = 157.63 × 64.44
  4. Step 4: Simplify right side
    114.22x = 10,157.68
  5. Step 5: Solve for x
    x = 10,157.68/114.22
  6. Step 6: Final answer
    x = 88.93

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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.