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Finding the Fourth Proportional to 218,789,705.88, 302,022,760.88 and 136,324,234.44

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Solution

The fourth proportional to 218,789,705.88, 302,022,760.88 and 136,324,234.44 is: 188,185,369.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,789,705.88 : 302,022,760.88 = 136,324,234.44 : x
  2. Step 2: Convert to fraction form
    218,789,705.88/302,022,760.88 = 136,324,234.44/x
  3. Step 3: Cross multiply
    218,789,705.88x = 302,022,760.88 × 136,324,234.44
  4. Step 4: Simplify right side
    218,789,705.88x = 41,173,021,660,421,176
  5. Step 5: Solve for x
    x = 41,173,021,660,421,176/218,789,705.88
  6. Step 6: Final answer
    x = 188,185,369.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.