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Finding the Fourth Proportional to 100,672.75, 151,009.17 and 26,800.75

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Solution

The fourth proportional to 100,672.75, 151,009.17 and 26,800.75 is: 40,201.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,672.75 : 151,009.17 = 26,800.75 : x
  2. Step 2: Convert to fraction form
    100,672.75/151,009.17 = 26,800.75/x
  3. Step 3: Cross multiply
    100,672.75x = 151,009.17 × 26,800.75
  4. Step 4: Simplify right side
    100,672.75x = 4,047,159,012.88
  5. Step 5: Solve for x
    x = 4,047,159,012.88/100,672.75
  6. Step 6: Final answer
    x = 40,201.14

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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.