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Finding the Fourth Proportional to 95,989.60, 143,811.60 and 82,165.60

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Solution

The fourth proportional to 95,989.60, 143,811.60 and 82,165.60 is: 123,100.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,989.60 : 143,811.60 = 82,165.60 : x
  2. Step 2: Convert to fraction form
    95,989.60/143,811.60 = 82,165.60/x
  3. Step 3: Cross multiply
    95,989.60x = 143,811.60 × 82,165.60
  4. Step 4: Simplify right side
    95,989.60x = 11,816,366,400.96
  5. Step 5: Solve for x
    x = 11,816,366,400.96/95,989.60
  6. Step 6: Final answer
    x = 123,100.49

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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.