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Finding the Fourth Proportional to 236,611,655.60, 354,320,286.60 and 155,392,890.80

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Solution

The fourth proportional to 236,611,655.60, 354,320,286.60 and 155,392,890.80 is: 232,697,131.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,611,655.60 : 354,320,286.60 = 155,392,890.80 : x
  2. Step 2: Convert to fraction form
    236,611,655.60/354,320,286.60 = 155,392,890.80/x
  3. Step 3: Cross multiply
    236,611,655.60x = 354,320,286.60 × 155,392,890.80
  4. Step 4: Simplify right side
    236,611,655.60x = 55,058,853,603,858,512
  5. Step 5: Solve for x
    x = 55,058,853,603,858,512/236,611,655.60
  6. Step 6: Final answer
    x = 232,697,131.78

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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.