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Finding the Fourth Proportional to 127,611, 191,504.16 and 44,505

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Solution

The fourth proportional to 127,611, 191,504.16 and 44,505 is: 66,788.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,611 : 191,504.16 = 44,505 : x
  2. Step 2: Convert to fraction form
    127,611/191,504.16 = 44,505/x
  3. Step 3: Cross multiply
    127,611x = 191,504.16 × 44,505
  4. Step 4: Simplify right side
    127,611x = 8,522,892,640.80
  5. Step 5: Solve for x
    x = 8,522,892,640.80/127,611
  6. Step 6: Final answer
    x = 66,788.07

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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.