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Finding the Fourth Proportional to 65,800,546.80, 90,807,591.80 and 36,431,878.48

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Solution

The fourth proportional to 65,800,546.80, 90,807,591.80 and 36,431,878.48 is: 50,277,563.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,800,546.80 : 90,807,591.80 = 36,431,878.48 : x
  2. Step 2: Convert to fraction form
    65,800,546.80/90,807,591.80 = 36,431,878.48/x
  3. Step 3: Cross multiply
    65,800,546.80x = 90,807,591.80 × 36,431,878.48
  4. Step 4: Simplify right side
    65,800,546.80x = 3,308,291,149,519,044
  5. Step 5: Solve for x
    x = 3,308,291,149,519,044/65,800,546.80
  6. Step 6: Final answer
    x = 50,277,563.19

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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.