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Finding the Fourth Proportional to 68,619.62, 94,694.46 and 38,404.60

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Solution

The fourth proportional to 68,619.62, 94,694.46 and 38,404.60 is: 52,998.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,619.62 : 94,694.46 = 38,404.60 : x
  2. Step 2: Convert to fraction form
    68,619.62/94,694.46 = 38,404.60/x
  3. Step 3: Cross multiply
    68,619.62x = 94,694.46 × 38,404.60
  4. Step 4: Simplify right side
    68,619.62x = 3,636,702,858.52
  5. Step 5: Solve for x
    x = 3,636,702,858.52/68,619.62
  6. Step 6: Final answer
    x = 52,998.00

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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.