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Finding the Third Proportional to 117,158,238 and 251,947,887.75

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Solution

The third proportional to 117,158,238 and 251,947,887.75 is: 541,811,990.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,158,238 : 251,947,887.75 = 251,947,887.75 : x
  2. Step 2: Convert to fraction form
    117,158,238/251,947,887.75 = 251,947,887.75/x
  3. Step 3: Cross multiply
    117,158,238x = 251,947,887.75 × 251,947,887.75
  4. Step 4: Simplify right side
    117,158,238x = 63,477,738,141,686,600
  5. Step 5: Solve for x
    x = 63,477,738,141,686,600/117,158,238
  6. Step 6: Final answer
    x = 541,811,990.56

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.