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Finding the Fourth Proportional to 55,578.88, 83,382.08 and 16,138.88

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Solution

The fourth proportional to 55,578.88, 83,382.08 and 16,138.88 is: 24,212.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,578.88 : 83,382.08 = 16,138.88 : x
  2. Step 2: Convert to fraction form
    55,578.88/83,382.08 = 16,138.88/x
  3. Step 3: Cross multiply
    55,578.88x = 83,382.08 × 16,138.88
  4. Step 4: Simplify right side
    55,578.88x = 1,345,693,383.27
  5. Step 5: Solve for x
    x = 1,345,693,383.27/55,578.88
  6. Step 6: Final answer
    x = 24,212.32

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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.