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Finding the Fourth Proportional to 86,245.70, 119,015.97 and 48,003.98

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Solution

The fourth proportional to 86,245.70, 119,015.97 and 48,003.98 is: 66,243.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,245.70 : 119,015.97 = 48,003.98 : x
  2. Step 2: Convert to fraction form
    86,245.70/119,015.97 = 48,003.98/x
  3. Step 3: Cross multiply
    86,245.70x = 119,015.97 × 48,003.98
  4. Step 4: Simplify right side
    86,245.70x = 5,713,240,243.56
  5. Step 5: Solve for x
    x = 5,713,240,243.56/86,245.70
  6. Step 6: Final answer
    x = 66,243.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.