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Finding the Fourth Proportional to 68,648.56, 102,579.26 and 52,329.40

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Solution

The fourth proportional to 68,648.56, 102,579.26 and 52,329.40 is: 78,194.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,648.56 : 102,579.26 = 52,329.40 : x
  2. Step 2: Convert to fraction form
    68,648.56/102,579.26 = 52,329.40/x
  3. Step 3: Cross multiply
    68,648.56x = 102,579.26 × 52,329.40
  4. Step 4: Simplify right side
    68,648.56x = 5,367,910,610.15
  5. Step 5: Solve for x
    x = 5,367,910,610.15/68,648.56
  6. Step 6: Final answer
    x = 78,194.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.