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Finding the Fourth Proportional to 61,393.80, 92,004.30 and 45,474.60

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Solution

The fourth proportional to 61,393.80, 92,004.30 and 45,474.60 is: 68,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,393.80 : 92,004.30 = 45,474.60 : x
  2. Step 2: Convert to fraction form
    61,393.80/92,004.30 = 45,474.60/x
  3. Step 3: Cross multiply
    61,393.80x = 92,004.30 × 45,474.60
  4. Step 4: Simplify right side
    61,393.80x = 4,183,858,740.78
  5. Step 5: Solve for x
    x = 4,183,858,740.78/61,393.80
  6. Step 6: Final answer
    x = 68,147.90

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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.