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Finding the Fourth Proportional to 80,048.98, 120,076.71 and 30,123.82

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Solution

The fourth proportional to 80,048.98, 120,076.71 and 30,123.82 is: 45,186.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,048.98 : 120,076.71 = 30,123.82 : x
  2. Step 2: Convert to fraction form
    80,048.98/120,076.71 = 30,123.82/x
  3. Step 3: Cross multiply
    80,048.98x = 120,076.71 × 30,123.82
  4. Step 4: Simplify right side
    80,048.98x = 3,617,169,198.23
  5. Step 5: Solve for x
    x = 3,617,169,198.23/80,048.98
  6. Step 6: Final answer
    x = 45,186.95

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.