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Finding the Fourth Proportional to 60,806.20, 91,209.30 and 54,901.30

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Solution

The fourth proportional to 60,806.20, 91,209.30 and 54,901.30 is: 82,351.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,806.20 : 91,209.30 = 54,901.30 : x
  2. Step 2: Convert to fraction form
    60,806.20/91,209.30 = 54,901.30/x
  3. Step 3: Cross multiply
    60,806.20x = 91,209.30 × 54,901.30
  4. Step 4: Simplify right side
    60,806.20x = 5,007,509,142.09
  5. Step 5: Solve for x
    x = 5,007,509,142.09/60,806.20
  6. Step 6: Final answer
    x = 82,351.95

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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.