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Finding the Third Proportional to 163,660.50 and 356,481

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Solution

The third proportional to 163,660.50 and 356,481 is: 776,477.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,660.50 : 356,481 = 356,481 : x
  2. Step 2: Convert to fraction form
    163,660.50/356,481 = 356,481/x
  3. Step 3: Cross multiply
    163,660.50x = 356,481 × 356,481
  4. Step 4: Simplify right side
    163,660.50x = 127,078,703,361
  5. Step 5: Solve for x
    x = 127,078,703,361/163,660.50
  6. Step 6: Final answer
    x = 776,477.55

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.