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Finding the Third Proportional to 56,716 and 124,340

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Solution

The third proportional to 56,716 and 124,340 is: 272,593.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,716 : 124,340 = 124,340 : x
  2. Step 2: Convert to fraction form
    56,716/124,340 = 124,340/x
  3. Step 3: Cross multiply
    56,716x = 124,340 × 124,340
  4. Step 4: Simplify right side
    56,716x = 15,460,435,600
  5. Step 5: Solve for x
    x = 15,460,435,600/56,716
  6. Step 6: Final answer
    x = 272,593.90

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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.