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Finding the Fourth Proportional to 136,736.93, 205,104.46 and 73,586.76

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Solution

The fourth proportional to 136,736.93, 205,104.46 and 73,586.76 is: 110,379.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,736.93 : 205,104.46 = 73,586.76 : x
  2. Step 2: Convert to fraction form
    136,736.93/205,104.46 = 73,586.76/x
  3. Step 3: Cross multiply
    136,736.93x = 205,104.46 × 73,586.76
  4. Step 4: Simplify right side
    136,736.93x = 15,092,972,672.95
  5. Step 5: Solve for x
    x = 15,092,972,672.95/136,736.93
  6. Step 6: Final answer
    x = 110,379.64

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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.