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Finding the Fourth Proportional to 115,797.71, 173,517.22 and 80,328.01

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Solution

The fourth proportional to 115,797.71, 173,517.22 and 80,328.01 is: 120,367.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,797.71 : 173,517.22 = 80,328.01 : x
  2. Step 2: Convert to fraction form
    115,797.71/173,517.22 = 80,328.01/x
  3. Step 3: Cross multiply
    115,797.71x = 173,517.22 × 80,328.01
  4. Step 4: Simplify right side
    115,797.71x = 13,938,292,983.33
  5. Step 5: Solve for x
    x = 13,938,292,983.33/115,797.71
  6. Step 6: Final answer
    x = 120,367.60

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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.