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Finding the Third Proportional to 115,556 and 248,358

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Solution

The third proportional to 115,556 and 248,358 is: 533,781.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,556 : 248,358 = 248,358 : x
  2. Step 2: Convert to fraction form
    115,556/248,358 = 248,358/x
  3. Step 3: Cross multiply
    115,556x = 248,358 × 248,358
  4. Step 4: Simplify right side
    115,556x = 61,681,696,164
  5. Step 5: Solve for x
    x = 61,681,696,164/115,556
  6. Step 6: Final answer
    x = 533,781.86

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.