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Finding the Third Proportional to 76,278 and 165,264

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Solution

The third proportional to 76,278 and 165,264 is: 358,061.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,278 : 165,264 = 165,264 : x
  2. Step 2: Convert to fraction form
    76,278/165,264 = 165,264/x
  3. Step 3: Cross multiply
    76,278x = 165,264 × 165,264
  4. Step 4: Simplify right side
    76,278x = 27,312,189,696
  5. Step 5: Solve for x
    x = 27,312,189,696/76,278
  6. Step 6: Final answer
    x = 358,061.17

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.