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Finding the Third Proportional to 155,538 and 248,076

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Solution

The third proportional to 155,538 and 248,076 is: 395,669.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,538 : 248,076 = 248,076 : x
  2. Step 2: Convert to fraction form
    155,538/248,076 = 248,076/x
  3. Step 3: Cross multiply
    155,538x = 248,076 × 248,076
  4. Step 4: Simplify right side
    155,538x = 61,541,701,776
  5. Step 5: Solve for x
    x = 61,541,701,776/155,538
  6. Step 6: Final answer
    x = 395,669.88

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.