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Finding the Third Proportional to 72,658 and 155,684

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Solution

The third proportional to 72,658 and 155,684 is: 333,583.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,658 : 155,684 = 155,684 : x
  2. Step 2: Convert to fraction form
    72,658/155,684 = 155,684/x
  3. Step 3: Cross multiply
    72,658x = 155,684 × 155,684
  4. Step 4: Simplify right side
    72,658x = 24,237,507,856
  5. Step 5: Solve for x
    x = 24,237,507,856/72,658
  6. Step 6: Final answer
    x = 333,583.47

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.