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Finding the Third Proportional to 119,426 and 257,500

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Solution

The third proportional to 119,426 and 257,500 is: 555,207.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,426 : 257,500 = 257,500 : x
  2. Step 2: Convert to fraction form
    119,426/257,500 = 257,500/x
  3. Step 3: Cross multiply
    119,426x = 257,500 × 257,500
  4. Step 4: Simplify right side
    119,426x = 66,306,250,000
  5. Step 5: Solve for x
    x = 66,306,250,000/119,426
  6. Step 6: Final answer
    x = 555,207.83

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.