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Finding the Third Proportional to 179,361 and 393,709.50

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Solution

The third proportional to 179,361 and 393,709.50 is: 864,218.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,361 : 393,709.50 = 393,709.50 : x
  2. Step 2: Convert to fraction form
    179,361/393,709.50 = 393,709.50/x
  3. Step 3: Cross multiply
    179,361x = 393,709.50 × 393,709.50
  4. Step 4: Simplify right side
    179,361x = 155,007,170,390.25
  5. Step 5: Solve for x
    x = 155,007,170,390.25/179,361
  6. Step 6: Final answer
    x = 864,218.92

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.