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Finding the Fourth Proportional to 61,393.26, 92,089.89 and 40,611.90

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Solution

The fourth proportional to 61,393.26, 92,089.89 and 40,611.90 is: 60,917.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,393.26 : 92,089.89 = 40,611.90 : x
  2. Step 2: Convert to fraction form
    61,393.26/92,089.89 = 40,611.90/x
  3. Step 3: Cross multiply
    61,393.26x = 92,089.89 × 40,611.90
  4. Step 4: Simplify right side
    61,393.26x = 3,739,945,403.69
  5. Step 5: Solve for x
    x = 3,739,945,403.69/61,393.26
  6. Step 6: Final answer
    x = 60,917.85

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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.