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Finding the Fourth Proportional to 68,201.27, 94,120.37 and 39,521.91

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Solution

The fourth proportional to 68,201.27, 94,120.37 and 39,521.91 is: 54,541.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,201.27 : 94,120.37 = 39,521.91 : x
  2. Step 2: Convert to fraction form
    68,201.27/94,120.37 = 39,521.91/x
  3. Step 3: Cross multiply
    68,201.27x = 94,120.37 × 39,521.91
  4. Step 4: Simplify right side
    68,201.27x = 3,719,816,891.11
  5. Step 5: Solve for x
    x = 3,719,816,891.11/68,201.27
  6. Step 6: Final answer
    x = 54,541.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.