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Finding the Fourth Proportional to 115,504.40, 173,321.40 and 48,933.20

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Solution

The fourth proportional to 115,504.40, 173,321.40 and 48,933.20 is: 73,427.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,504.40 : 173,321.40 = 48,933.20 : x
  2. Step 2: Convert to fraction form
    115,504.40/173,321.40 = 48,933.20/x
  3. Step 3: Cross multiply
    115,504.40x = 173,321.40 × 48,933.20
  4. Step 4: Simplify right side
    115,504.40x = 8,481,170,730.48
  5. Step 5: Solve for x
    x = 8,481,170,730.48/115,504.40
  6. Step 6: Final answer
    x = 73,427.25

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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.