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Finding the Fourth Proportional to 131,058,416.80, 196,571,878.80 and 54,373,448.80

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Solution

The fourth proportional to 131,058,416.80, 196,571,878.80 and 54,373,448.80 is: 81,553,640.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,058,416.80 : 196,571,878.80 = 54,373,448.80 : x
  2. Step 2: Convert to fraction form
    131,058,416.80/196,571,878.80 = 54,373,448.80/x
  3. Step 3: Cross multiply
    131,058,416.80x = 196,571,878.80 × 54,373,448.80
  4. Step 4: Simplify right side
    131,058,416.80x = 10,688,290,987,451,606
  5. Step 5: Solve for x
    x = 10,688,290,987,451,606/131,058,416.80
  6. Step 6: Final answer
    x = 81,553,640.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.