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Finding the Fourth Proportional to 174,579.49, 261,879.63 and 54,658.90

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Solution

The fourth proportional to 174,579.49, 261,879.63 and 54,658.90 is: 81,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,579.49 : 261,879.63 = 54,658.90 : x
  2. Step 2: Convert to fraction form
    174,579.49/261,879.63 = 54,658.90/x
  3. Step 3: Cross multiply
    174,579.49x = 261,879.63 × 54,658.90
  4. Step 4: Simplify right side
    174,579.49x = 14,314,052,508.21
  5. Step 5: Solve for x
    x = 14,314,052,508.21/174,579.49
  6. Step 6: Final answer
    x = 81,991.60

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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.