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Finding the Third Proportional to 161,920,778 and 248,728,047

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Solution

The third proportional to 161,920,778 and 248,728,047 is: 382,073,518.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,920,778 : 248,728,047 = 248,728,047 : x
  2. Step 2: Convert to fraction form
    161,920,778/248,728,047 = 248,728,047/x
  3. Step 3: Cross multiply
    161,920,778x = 248,728,047 × 248,728,047
  4. Step 4: Simplify right side
    161,920,778x = 61,865,641,364,434,208
  5. Step 5: Solve for x
    x = 61,865,641,364,434,208/161,920,778
  6. Step 6: Final answer
    x = 382,073,518.47

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.