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Finding the Fourth Proportional to 61,760.94, 92,419.96 and 53,469.48

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Solution

The fourth proportional to 61,760.94, 92,419.96 and 53,469.48 is: 80,012.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,760.94 : 92,419.96 = 53,469.48 : x
  2. Step 2: Convert to fraction form
    61,760.94/92,419.96 = 53,469.48/x
  3. Step 3: Cross multiply
    61,760.94x = 92,419.96 × 53,469.48
  4. Step 4: Simplify right side
    61,760.94x = 4,941,647,202.82
  5. Step 5: Solve for x
    x = 4,941,647,202.82/61,760.94
  6. Step 6: Final answer
    x = 80,012.50

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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.