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Finding the Third Proportional to 57,321 and 124,470

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Solution

The third proportional to 57,321 and 124,470 is: 270,281.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,321 : 124,470 = 124,470 : x
  2. Step 2: Convert to fraction form
    57,321/124,470 = 124,470/x
  3. Step 3: Cross multiply
    57,321x = 124,470 × 124,470
  4. Step 4: Simplify right side
    57,321x = 15,492,780,900
  5. Step 5: Solve for x
    x = 15,492,780,900/57,321
  6. Step 6: Final answer
    x = 270,281.06

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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.