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Finding the Third Proportional to 56,498 and 124,280

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Solution

The third proportional to 56,498 and 124,280 is: 273,381.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,498 : 124,280 = 124,280 : x
  2. Step 2: Convert to fraction form
    56,498/124,280 = 124,280/x
  3. Step 3: Cross multiply
    56,498x = 124,280 × 124,280
  4. Step 4: Simplify right side
    56,498x = 15,445,518,400
  5. Step 5: Solve for x
    x = 15,445,518,400/56,498
  6. Step 6: Final answer
    x = 273,381.68

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.