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Finding the Fourth Proportional to 68,349.70, 102,524.55 and 65,725.30

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Solution

The fourth proportional to 68,349.70, 102,524.55 and 65,725.30 is: 98,587.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,349.70 : 102,524.55 = 65,725.30 : x
  2. Step 2: Convert to fraction form
    68,349.70/102,524.55 = 65,725.30/x
  3. Step 3: Cross multiply
    68,349.70x = 102,524.55 × 65,725.30
  4. Step 4: Simplify right side
    68,349.70x = 6,738,456,806.12
  5. Step 5: Solve for x
    x = 6,738,456,806.12/68,349.70
  6. Step 6: Final answer
    x = 98,587.95

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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.