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Finding the Fourth Proportional to 95,959.40, 143,939.10 and 75,914.60

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Solution

The fourth proportional to 95,959.40, 143,939.10 and 75,914.60 is: 113,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,959.40 : 143,939.10 = 75,914.60 : x
  2. Step 2: Convert to fraction form
    95,959.40/143,939.10 = 75,914.60/x
  3. Step 3: Cross multiply
    95,959.40x = 143,939.10 × 75,914.60
  4. Step 4: Simplify right side
    95,959.40x = 10,927,079,200.86
  5. Step 5: Solve for x
    x = 10,927,079,200.86/95,959.40
  6. Step 6: Final answer
    x = 113,871.90

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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.