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Finding the Third Proportional to 124,620 and 268,248

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Solution

The third proportional to 124,620 and 268,248 is: 577,411.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,620 : 268,248 = 268,248 : x
  2. Step 2: Convert to fraction form
    124,620/268,248 = 268,248/x
  3. Step 3: Cross multiply
    124,620x = 268,248 × 268,248
  4. Step 4: Simplify right side
    124,620x = 71,956,989,504
  5. Step 5: Solve for x
    x = 71,956,989,504/124,620
  6. Step 6: Final answer
    x = 577,411.25

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.