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Finding the Fourth Proportional to 127,793.79, 191,690.66 and 34,299.54

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Solution

The fourth proportional to 127,793.79, 191,690.66 and 34,299.54 is: 51,449.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,793.79 : 191,690.66 = 34,299.54 : x
  2. Step 2: Convert to fraction form
    127,793.79/191,690.66 = 34,299.54/x
  3. Step 3: Cross multiply
    127,793.79x = 191,690.66 × 34,299.54
  4. Step 4: Simplify right side
    127,793.79x = 6,574,902,133.41
  5. Step 5: Solve for x
    x = 6,574,902,133.41/127,793.79
  6. Step 6: Final answer
    x = 51,449.31

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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.