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Finding the Fourth Proportional to 91,253.54, 137,123.30 and 49,165.94

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Solution

The fourth proportional to 91,253.54, 137,123.30 and 49,165.94 is: 73,879.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,253.54 : 137,123.30 = 49,165.94 : x
  2. Step 2: Convert to fraction form
    91,253.54/137,123.30 = 49,165.94/x
  3. Step 3: Cross multiply
    91,253.54x = 137,123.30 × 49,165.94
  4. Step 4: Simplify right side
    91,253.54x = 6,741,795,940.40
  5. Step 5: Solve for x
    x = 6,741,795,940.40/91,253.54
  6. Step 6: Final answer
    x = 73,879.83

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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.