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Finding the Fourth Proportional to 91,393.98, 137,102.25 and 44,611.50

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Solution

The fourth proportional to 91,393.98, 137,102.25 and 44,611.50 is: 66,922.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,393.98 : 137,102.25 = 44,611.50 : x
  2. Step 2: Convert to fraction form
    91,393.98/137,102.25 = 44,611.50/x
  3. Step 3: Cross multiply
    91,393.98x = 137,102.25 × 44,611.50
  4. Step 4: Simplify right side
    91,393.98x = 6,116,337,025.88
  5. Step 5: Solve for x
    x = 6,116,337,025.88/91,393.98
  6. Step 6: Final answer
    x = 66,922.76

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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.