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Finding the Fourth Proportional to 115,400.60, 173,114.40 and 36,522.80

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Solution

The fourth proportional to 115,400.60, 173,114.40 and 36,522.80 is: 54,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,400.60 : 173,114.40 = 36,522.80 : x
  2. Step 2: Convert to fraction form
    115,400.60/173,114.40 = 36,522.80/x
  3. Step 3: Cross multiply
    115,400.60x = 173,114.40 × 36,522.80
  4. Step 4: Simplify right side
    115,400.60x = 6,322,622,608.32
  5. Step 5: Solve for x
    x = 6,322,622,608.32/115,400.60
  6. Step 6: Final answer
    x = 54,788.47

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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.