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Finding the Fourth Proportional to 80,076.45, 110,505.47 and 48,251.50

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Solution

The fourth proportional to 80,076.45, 110,505.47 and 48,251.50 is: 66,587.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,076.45 : 110,505.47 = 48,251.50 : x
  2. Step 2: Convert to fraction form
    80,076.45/110,505.47 = 48,251.50/x
  3. Step 3: Cross multiply
    80,076.45x = 110,505.47 × 48,251.50
  4. Step 4: Simplify right side
    80,076.45x = 5,332,054,168.18
  5. Step 5: Solve for x
    x = 5,332,054,168.18/80,076.45
  6. Step 6: Final answer
    x = 66,587.05

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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.