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Finding the Fourth Proportional to 188.01, 282.01 and 66.24

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Solution

The fourth proportional to 188.01, 282.01 and 66.24 is: 99.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.01 : 282.01 = 66.24 : x
  2. Step 2: Convert to fraction form
    188.01/282.01 = 66.24/x
  3. Step 3: Cross multiply
    188.01x = 282.01 × 66.24
  4. Step 4: Simplify right side
    188.01x = 18,679.74
  5. Step 5: Solve for x
    x = 18,679.74/188.01
  6. Step 6: Final answer
    x = 99.36

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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.