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Finding the Third Proportional to 248,980.50 and 376,435.50

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Solution

The third proportional to 248,980.50 and 376,435.50 is: 569,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,980.50 : 376,435.50 = 376,435.50 : x
  2. Step 2: Convert to fraction form
    248,980.50/376,435.50 = 376,435.50/x
  3. Step 3: Cross multiply
    248,980.50x = 376,435.50 × 376,435.50
  4. Step 4: Simplify right side
    248,980.50x = 141,703,685,660.25
  5. Step 5: Solve for x
    x = 141,703,685,660.25/248,980.50
  6. Step 6: Final answer
    x = 569,135.68

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.