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Finding the Fourth Proportional to 139,324.34, 208,994.40 and 44,562.84

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Solution

The fourth proportional to 139,324.34, 208,994.40 and 44,562.84 is: 66,846.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,324.34 : 208,994.40 = 44,562.84 : x
  2. Step 2: Convert to fraction form
    139,324.34/208,994.40 = 44,562.84/x
  3. Step 3: Cross multiply
    139,324.34x = 208,994.40 × 44,562.84
  4. Step 4: Simplify right side
    139,324.34x = 9,313,384,008.10
  5. Step 5: Solve for x
    x = 9,313,384,008.10/139,324.34
  6. Step 6: Final answer
    x = 66,846.79

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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.