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Finding the Third Proportional to 101,382,979 and 208,140,574

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Solution

The third proportional to 101,382,979 and 208,140,574 is: 427,315,304.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,382,979 : 208,140,574 = 208,140,574 : x
  2. Step 2: Convert to fraction form
    101,382,979/208,140,574 = 208,140,574/x
  3. Step 3: Cross multiply
    101,382,979x = 208,140,574 × 208,140,574
  4. Step 4: Simplify right side
    101,382,979x = 43,322,498,545,049,472
  5. Step 5: Solve for x
    x = 43,322,498,545,049,472/101,382,979
  6. Step 6: Final answer
    x = 427,315,304.53

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.