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Finding the Fourth Proportional to 127,192, 190,539.78 and 60,540.52

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Solution

The fourth proportional to 127,192, 190,539.78 and 60,540.52 is: 90,692.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,192 : 190,539.78 = 60,540.52 : x
  2. Step 2: Convert to fraction form
    127,192/190,539.78 = 60,540.52/x
  3. Step 3: Cross multiply
    127,192x = 190,539.78 × 60,540.52
  4. Step 4: Simplify right side
    127,192x = 11,535,377,361.89
  5. Step 5: Solve for x
    x = 11,535,377,361.89/127,192
  6. Step 6: Final answer
    x = 90,692.63

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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.