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Finding the Third Proportional to 188,810,988 and 291,601,608

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Solution

The third proportional to 188,810,988 and 291,601,608 is: 450,352,485.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,810,988 : 291,601,608 = 291,601,608 : x
  2. Step 2: Convert to fraction form
    188,810,988/291,601,608 = 291,601,608/x
  3. Step 3: Cross multiply
    188,810,988x = 291,601,608 × 291,601,608
  4. Step 4: Simplify right side
    188,810,988x = 85,031,497,788,185,664
  5. Step 5: Solve for x
    x = 85,031,497,788,185,664/188,810,988
  6. Step 6: Final answer
    x = 450,352,485.78

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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.