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Finding the Fourth Proportional to 68,491.80, 102,687.96 and 46,250.04

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Solution

The fourth proportional to 68,491.80, 102,687.96 and 46,250.04 is: 69,341.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,491.80 : 102,687.96 = 46,250.04 : x
  2. Step 2: Convert to fraction form
    68,491.80/102,687.96 = 46,250.04/x
  3. Step 3: Cross multiply
    68,491.80x = 102,687.96 × 46,250.04
  4. Step 4: Simplify right side
    68,491.80x = 4,749,322,257.52
  5. Step 5: Solve for x
    x = 4,749,322,257.52/68,491.80
  6. Step 6: Final answer
    x = 69,341.47

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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.