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Finding the Fourth Proportional to 368,044.56, 552,183.48 and 131,382

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Solution

The fourth proportional to 368,044.56, 552,183.48 and 131,382 is: 197,114.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,044.56 : 552,183.48 = 131,382 : x
  2. Step 2: Convert to fraction form
    368,044.56/552,183.48 = 131,382/x
  3. Step 3: Cross multiply
    368,044.56x = 552,183.48 × 131,382
  4. Step 4: Simplify right side
    368,044.56x = 72,546,969,969.36
  5. Step 5: Solve for x
    x = 72,546,969,969.36/368,044.56
  6. Step 6: Final answer
    x = 197,114.64

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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.