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Finding the Fourth Proportional to 136,793.78, 205,255.65 and 94,738.58

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Solution

The fourth proportional to 136,793.78, 205,255.65 and 94,738.58 is: 142,152.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,793.78 : 205,255.65 = 94,738.58 : x
  2. Step 2: Convert to fraction form
    136,793.78/205,255.65 = 94,738.58/x
  3. Step 3: Cross multiply
    136,793.78x = 205,255.65 × 94,738.58
  4. Step 4: Simplify right side
    136,793.78x = 19,445,628,817.98
  5. Step 5: Solve for x
    x = 19,445,628,817.98/136,793.78
  6. Step 6: Final answer
    x = 142,152.87

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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.