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Finding the Fourth Proportional to 54,310, 81,391.02 and 27,959.08

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Solution

The fourth proportional to 54,310, 81,391.02 and 27,959.08 is: 41,900.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,310 : 81,391.02 = 27,959.08 : x
  2. Step 2: Convert to fraction form
    54,310/81,391.02 = 27,959.08/x
  3. Step 3: Cross multiply
    54,310x = 81,391.02 × 27,959.08
  4. Step 4: Simplify right side
    54,310x = 2,275,618,039.46
  5. Step 5: Solve for x
    x = 2,275,618,039.46/54,310
  6. Step 6: Final answer
    x = 41,900.53

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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.