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Finding the Third Proportional to 155.75 and 292

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Solution

The third proportional to 155.75 and 292 is: 547.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.75 : 292 = 292 : x
  2. Step 2: Convert to fraction form
    155.75/292 = 292/x
  3. Step 3: Cross multiply
    155.75x = 292 × 292
  4. Step 4: Simplify right side
    155.75x = 85,264
  5. Step 5: Solve for x
    x = 85,264/155.75
  6. Step 6: Final answer
    x = 547.44

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.