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Finding the Fourth Proportional to 68,394.71, 102,628.17 and 48,532.55

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Solution

The fourth proportional to 68,394.71, 102,628.17 and 48,532.55 is: 72,824.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,394.71 : 102,628.17 = 48,532.55 : x
  2. Step 2: Convert to fraction form
    68,394.71/102,628.17 = 48,532.55/x
  3. Step 3: Cross multiply
    68,394.71x = 102,628.17 × 48,532.55
  4. Step 4: Simplify right side
    68,394.71x = 4,980,806,791.93
  5. Step 5: Solve for x
    x = 4,980,806,791.93/68,394.71
  6. Step 6: Final answer
    x = 72,824.44

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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.