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Finding the Fourth Proportional to 100,889.39, 151,342.79 and 26,008.90

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Solution

The fourth proportional to 100,889.39, 151,342.79 and 26,008.90 is: 39,015.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,889.39 : 151,342.79 = 26,008.90 : x
  2. Step 2: Convert to fraction form
    100,889.39/151,342.79 = 26,008.90/x
  3. Step 3: Cross multiply
    100,889.39x = 151,342.79 × 26,008.90
  4. Step 4: Simplify right side
    100,889.39x = 3,936,259,165.30
  5. Step 5: Solve for x
    x = 3,936,259,165.30/100,889.39
  6. Step 6: Final answer
    x = 39,015.59

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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.