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Finding the Fourth Proportional to 61,002,502.80, 91,474,885.80 and 35,451,344.40

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Solution

The fourth proportional to 61,002,502.80, 91,474,885.80 and 35,451,344.40 is: 53,160,239.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,002,502.80 : 91,474,885.80 = 35,451,344.40 : x
  2. Step 2: Convert to fraction form
    61,002,502.80/91,474,885.80 = 35,451,344.40/x
  3. Step 3: Cross multiply
    61,002,502.80x = 91,474,885.80 × 35,451,344.40
  4. Step 4: Simplify right side
    61,002,502.80x = 3,242,907,680,446,469.50
  5. Step 5: Solve for x
    x = 3,242,907,680,446,469.50/61,002,502.80
  6. Step 6: Final answer
    x = 53,160,239.85

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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.