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Finding the Fourth Proportional to 61,463,791.80, 92,195,687.70 and 47,858,902.20

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Solution

The fourth proportional to 61,463,791.80, 92,195,687.70 and 47,858,902.20 is: 71,788,353.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,463,791.80 : 92,195,687.70 = 47,858,902.20 : x
  2. Step 2: Convert to fraction form
    61,463,791.80/92,195,687.70 = 47,858,902.20/x
  3. Step 3: Cross multiply
    61,463,791.80x = 92,195,687.70 × 47,858,902.20
  4. Step 4: Simplify right side
    61,463,791.80x = 4,412,384,400,896,043.50
  5. Step 5: Solve for x
    x = 4,412,384,400,896,043.50/61,463,791.80
  6. Step 6: Final answer
    x = 71,788,353.30

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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.