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Finding the Third Proportional to 137,990,258 and 303,979,516

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Solution

The third proportional to 137,990,258 and 303,979,516 is: 669,638,186.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,990,258 : 303,979,516 = 303,979,516 : x
  2. Step 2: Convert to fraction form
    137,990,258/303,979,516 = 303,979,516/x
  3. Step 3: Cross multiply
    137,990,258x = 303,979,516 × 303,979,516
  4. Step 4: Simplify right side
    137,990,258x = 92,403,546,147,594,256
  5. Step 5: Solve for x
    x = 92,403,546,147,594,256/137,990,258
  6. Step 6: Final answer
    x = 669,638,186.69

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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.