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Finding the Fourth Proportional to 262.48, 362.13 and 157.59

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Solution

The fourth proportional to 262.48, 362.13 and 157.59 is: 217.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.48 : 362.13 = 157.59 : x
  2. Step 2: Convert to fraction form
    262.48/362.13 = 157.59/x
  3. Step 3: Cross multiply
    262.48x = 362.13 × 157.59
  4. Step 4: Simplify right side
    262.48x = 57,068.07
  5. Step 5: Solve for x
    x = 57,068.07/262.48
  6. Step 6: Final answer
    x = 217.42

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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.