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Finding the Fourth Proportional to 61,791.38, 92,687.01 and 53,446.59

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Solution

The fourth proportional to 61,791.38, 92,687.01 and 53,446.59 is: 80,169.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,791.38 : 92,687.01 = 53,446.59 : x
  2. Step 2: Convert to fraction form
    61,791.38/92,687.01 = 53,446.59/x
  3. Step 3: Cross multiply
    61,791.38x = 92,687.01 × 53,446.59
  4. Step 4: Simplify right side
    61,791.38x = 4,953,804,621.80
  5. Step 5: Solve for x
    x = 4,953,804,621.80/61,791.38
  6. Step 6: Final answer
    x = 80,169.84

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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.