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Finding the Fourth Proportional to 262.98, 362.90 and 159.48

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Solution

The fourth proportional to 262.98, 362.90 and 159.48 is: 220.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.98 : 362.90 = 159.48 : x
  2. Step 2: Convert to fraction form
    262.98/362.90 = 159.48/x
  3. Step 3: Cross multiply
    262.98x = 362.90 × 159.48
  4. Step 4: Simplify right side
    262.98x = 57,875.29
  5. Step 5: Solve for x
    x = 57,875.29/262.98
  6. Step 6: Final answer
    x = 220.07

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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.