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Finding the Fourth Proportional to 68,809.46, 94,916.61 and 43,275.42

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Solution

The fourth proportional to 68,809.46, 94,916.61 and 43,275.42 is: 59,694.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,809.46 : 94,916.61 = 43,275.42 : x
  2. Step 2: Convert to fraction form
    68,809.46/94,916.61 = 43,275.42/x
  3. Step 3: Cross multiply
    68,809.46x = 94,916.61 × 43,275.42
  4. Step 4: Simplify right side
    68,809.46x = 4,107,556,162.73
  5. Step 5: Solve for x
    x = 4,107,556,162.73/68,809.46
  6. Step 6: Final answer
    x = 59,694.65

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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.