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Finding the Fourth Proportional to 68,673.28, 102,835.68 and 57,550.72

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Solution

The fourth proportional to 68,673.28, 102,835.68 and 57,550.72 is: 86,180.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,673.28 : 102,835.68 = 57,550.72 : x
  2. Step 2: Convert to fraction form
    68,673.28/102,835.68 = 57,550.72/x
  3. Step 3: Cross multiply
    68,673.28x = 102,835.68 × 57,550.72
  4. Step 4: Simplify right side
    68,673.28x = 5,918,267,425.69
  5. Step 5: Solve for x
    x = 5,918,267,425.69/68,673.28
  6. Step 6: Final answer
    x = 86,180.06

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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.