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Finding the Third Proportional to 115,311 and 252,492

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Solution

The third proportional to 115,311 and 252,492 is: 552,871.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,311 : 252,492 = 252,492 : x
  2. Step 2: Convert to fraction form
    115,311/252,492 = 252,492/x
  3. Step 3: Cross multiply
    115,311x = 252,492 × 252,492
  4. Step 4: Simplify right side
    115,311x = 63,752,210,064
  5. Step 5: Solve for x
    x = 63,752,210,064/115,311
  6. Step 6: Final answer
    x = 552,871.89

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.