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Finding the Third Proportional to 249,678 and 365,172

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Solution

The third proportional to 249,678 and 365,172 is: 534,090.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,678 : 365,172 = 365,172 : x
  2. Step 2: Convert to fraction form
    249,678/365,172 = 365,172/x
  3. Step 3: Cross multiply
    249,678x = 365,172 × 365,172
  4. Step 4: Simplify right side
    249,678x = 133,350,589,584
  5. Step 5: Solve for x
    x = 133,350,589,584/249,678
  6. Step 6: Final answer
    x = 534,090.27

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.