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Finding the Fourth Proportional to 173,003.60, 259,361.40 and 73,240.40

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Solution

The fourth proportional to 173,003.60, 259,361.40 and 73,240.40 is: 109,799.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,003.60 : 259,361.40 = 73,240.40 : x
  2. Step 2: Convert to fraction form
    173,003.60/259,361.40 = 73,240.40/x
  3. Step 3: Cross multiply
    173,003.60x = 259,361.40 × 73,240.40
  4. Step 4: Simplify right side
    173,003.60x = 18,995,732,680.56
  5. Step 5: Solve for x
    x = 18,995,732,680.56/173,003.60
  6. Step 6: Final answer
    x = 109,799.64

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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.