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Finding the Fourth Proportional to 170,568.99, 255,591.05 and 100,371.15

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Solution

The fourth proportional to 170,568.99, 255,591.05 and 100,371.15 is: 150,402.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,568.99 : 255,591.05 = 100,371.15 : x
  2. Step 2: Convert to fraction form
    170,568.99/255,591.05 = 100,371.15/x
  3. Step 3: Cross multiply
    170,568.99x = 255,591.05 × 100,371.15
  4. Step 4: Simplify right side
    170,568.99x = 25,653,967,116.35
  5. Step 5: Solve for x
    x = 25,653,967,116.35/170,568.99
  6. Step 6: Final answer
    x = 150,402.29

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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.