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Finding the Fourth Proportional to 80,993,498.93, 111,770,956.30 and 45,718,728.94

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Solution

The fourth proportional to 80,993,498.93, 111,770,956.30 and 45,718,728.94 is: 63,091,805.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,993,498.93 : 111,770,956.30 = 45,718,728.94 : x
  2. Step 2: Convert to fraction form
    80,993,498.93/111,770,956.30 = 45,718,728.94/x
  3. Step 3: Cross multiply
    80,993,498.93x = 111,770,956.30 × 45,718,728.94
  4. Step 4: Simplify right side
    80,993,498.93x = 5,110,026,054,444,285
  5. Step 5: Solve for x
    x = 5,110,026,054,444,285/80,993,498.93
  6. Step 6: Final answer
    x = 63,091,805.17

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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.