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Finding the Third Proportional to 78,158,268 and 167,072,736

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Solution

The third proportional to 78,158,268 and 167,072,736 is: 357,138,148.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,158,268 : 167,072,736 = 167,072,736 : x
  2. Step 2: Convert to fraction form
    78,158,268/167,072,736 = 167,072,736/x
  3. Step 3: Cross multiply
    78,158,268x = 167,072,736 × 167,072,736
  4. Step 4: Simplify right side
    78,158,268x = 27,913,299,114,525,696
  5. Step 5: Solve for x
    x = 27,913,299,114,525,696/78,158,268
  6. Step 6: Final answer
    x = 357,138,148.39

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.