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Finding the Third Proportional to 160.75 and 285.88

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Solution

The third proportional to 160.75 and 285.88 is: 508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.75 : 285.88 = 285.88 : x
  2. Step 2: Convert to fraction form
    160.75/285.88 = 285.88/x
  3. Step 3: Cross multiply
    160.75x = 285.88 × 285.88
  4. Step 4: Simplify right side
    160.75x = 81,724.52
  5. Step 5: Solve for x
    x = 81,724.52/160.75
  6. Step 6: Final answer
    x = 508.40

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.