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Finding the Fourth Proportional to 126,894.98, 190,268.69 and 48,015.30

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Solution

The fourth proportional to 126,894.98, 190,268.69 and 48,015.30 is: 71,995.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,894.98 : 190,268.69 = 48,015.30 : x
  2. Step 2: Convert to fraction form
    126,894.98/190,268.69 = 48,015.30/x
  3. Step 3: Cross multiply
    126,894.98x = 190,268.69 × 48,015.30
  4. Step 4: Simplify right side
    126,894.98x = 9,135,808,230.96
  5. Step 5: Solve for x
    x = 9,135,808,230.96/126,894.98
  6. Step 6: Final answer
    x = 71,995.03

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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.