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Finding the Fourth Proportional to 49,718.97, 68,479.11 and 43,004.88

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Solution

The fourth proportional to 49,718.97, 68,479.11 and 43,004.88 is: 59,231.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,718.97 : 68,479.11 = 43,004.88 : x
  2. Step 2: Convert to fraction form
    49,718.97/68,479.11 = 43,004.88/x
  3. Step 3: Cross multiply
    49,718.97x = 68,479.11 × 43,004.88
  4. Step 4: Simplify right side
    49,718.97x = 2,944,935,908.06
  5. Step 5: Solve for x
    x = 2,944,935,908.06/49,718.97
  6. Step 6: Final answer
    x = 59,231.64

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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.