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Finding the Fourth Proportional to 127,990.56, 191,996.10 and 34,494.96

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Solution

The fourth proportional to 127,990.56, 191,996.10 and 34,494.96 is: 51,745.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,990.56 : 191,996.10 = 34,494.96 : x
  2. Step 2: Convert to fraction form
    127,990.56/191,996.10 = 34,494.96/x
  3. Step 3: Cross multiply
    127,990.56x = 191,996.10 × 34,494.96
  4. Step 4: Simplify right side
    127,990.56x = 6,622,897,789.66
  5. Step 5: Solve for x
    x = 6,622,897,789.66/127,990.56
  6. Step 6: Final answer
    x = 51,745.21

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1.5x scale

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.