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Finding the Fourth Proportional to 67,939.92, 101,903.40 and 41,631.12

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Solution

The fourth proportional to 67,939.92, 101,903.40 and 41,631.12 is: 62,442.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,939.92 : 101,903.40 = 41,631.12 : x
  2. Step 2: Convert to fraction form
    67,939.92/101,903.40 = 41,631.12/x
  3. Step 3: Cross multiply
    67,939.92x = 101,903.40 × 41,631.12
  4. Step 4: Simplify right side
    67,939.92x = 4,242,352,673.81
  5. Step 5: Solve for x
    x = 4,242,352,673.81/67,939.92
  6. Step 6: Final answer
    x = 62,442.71

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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.