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Finding the Fourth Proportional to 293,491.60, 440,107.80 and 115,939.60

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Solution

The fourth proportional to 293,491.60, 440,107.80 and 115,939.60 is: 173,858.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,491.60 : 440,107.80 = 115,939.60 : x
  2. Step 2: Convert to fraction form
    293,491.60/440,107.80 = 115,939.60/x
  3. Step 3: Cross multiply
    293,491.60x = 440,107.80 × 115,939.60
  4. Step 4: Simplify right side
    293,491.60x = 51,025,922,288.88
  5. Step 5: Solve for x
    x = 51,025,922,288.88/293,491.60
  6. Step 6: Final answer
    x = 173,858.20

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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.