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Finding the Fourth Proportional to 86,800.16, 119,786.46 and 48,558.44

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Solution

The fourth proportional to 86,800.16, 119,786.46 and 48,558.44 is: 67,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,800.16 : 119,786.46 = 48,558.44 : x
  2. Step 2: Convert to fraction form
    86,800.16/119,786.46 = 48,558.44/x
  3. Step 3: Cross multiply
    86,800.16x = 119,786.46 × 48,558.44
  4. Step 4: Simplify right side
    86,800.16x = 5,816,643,630.72
  5. Step 5: Solve for x
    x = 5,816,643,630.72/86,800.16
  6. Step 6: Final answer
    x = 67,011.90

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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.