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Finding the Fourth Proportional to 127,149.86, 190,850.34 and 95,449.70

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Solution

The fourth proportional to 127,149.86, 190,850.34 and 95,449.70 is: 143,268.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,149.86 : 190,850.34 = 95,449.70 : x
  2. Step 2: Convert to fraction form
    127,149.86/190,850.34 = 95,449.70/x
  3. Step 3: Cross multiply
    127,149.86x = 190,850.34 × 95,449.70
  4. Step 4: Simplify right side
    127,149.86x = 18,216,607,697.90
  5. Step 5: Solve for x
    x = 18,216,607,697.90/127,149.86
  6. Step 6: Final answer
    x = 143,268.80

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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.