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Finding the Third Proportional to 107,280 and 228,420

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Solution

The third proportional to 107,280 and 228,420 is: 486,350.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,280 : 228,420 = 228,420 : x
  2. Step 2: Convert to fraction form
    107,280/228,420 = 228,420/x
  3. Step 3: Cross multiply
    107,280x = 228,420 × 228,420
  4. Step 4: Simplify right side
    107,280x = 52,175,696,400
  5. Step 5: Solve for x
    x = 52,175,696,400/107,280
  6. Step 6: Final answer
    x = 486,350.64

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.