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Finding the Third Proportional to 163,242 and 239,274

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Solution

The third proportional to 163,242 and 239,274 is: 350,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,242 : 239,274 = 239,274 : x
  2. Step 2: Convert to fraction form
    163,242/239,274 = 239,274/x
  3. Step 3: Cross multiply
    163,242x = 239,274 × 239,274
  4. Step 4: Simplify right side
    163,242x = 57,252,047,076
  5. Step 5: Solve for x
    x = 57,252,047,076/163,242
  6. Step 6: Final answer
    x = 350,718.85

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.