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Finding the Third Proportional to 74,292 and 163,320

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Solution

The third proportional to 74,292 and 163,320 is: 359,034.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,292 : 163,320 = 163,320 : x
  2. Step 2: Convert to fraction form
    74,292/163,320 = 163,320/x
  3. Step 3: Cross multiply
    74,292x = 163,320 × 163,320
  4. Step 4: Simplify right side
    74,292x = 26,673,422,400
  5. Step 5: Solve for x
    x = 26,673,422,400/74,292
  6. Step 6: Final answer
    x = 359,034.92

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.