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Finding the Fourth Proportional to 100,579.75, 150,869.64 and 26,707.75

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Solution

The fourth proportional to 100,579.75, 150,869.64 and 26,707.75 is: 40,061.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,579.75 : 150,869.64 = 26,707.75 : x
  2. Step 2: Convert to fraction form
    100,579.75/150,869.64 = 26,707.75/x
  3. Step 3: Cross multiply
    100,579.75x = 150,869.64 × 26,707.75
  4. Step 4: Simplify right side
    100,579.75x = 4,029,388,627.71
  5. Step 5: Solve for x
    x = 4,029,388,627.71/100,579.75
  6. Step 6: Final answer
    x = 40,061.63

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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.