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Finding the Third Proportional to 166,628 and 361,688

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Solution

The third proportional to 166,628 and 361,688 is: 785,091.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,628 : 361,688 = 361,688 : x
  2. Step 2: Convert to fraction form
    166,628/361,688 = 361,688/x
  3. Step 3: Cross multiply
    166,628x = 361,688 × 361,688
  4. Step 4: Simplify right side
    166,628x = 130,818,209,344
  5. Step 5: Solve for x
    x = 130,818,209,344/166,628
  6. Step 6: Final answer
    x = 785,091.40

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.