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Finding the Fourth Proportional to 68,496.75, 102,775.91 and 43,530.32

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Solution

The fourth proportional to 68,496.75, 102,775.91 and 43,530.32 is: 65,315.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,496.75 : 102,775.91 = 43,530.32 : x
  2. Step 2: Convert to fraction form
    68,496.75/102,775.91 = 43,530.32/x
  3. Step 3: Cross multiply
    68,496.75x = 102,775.91 × 43,530.32
  4. Step 4: Simplify right side
    68,496.75x = 4,473,868,289.88
  5. Step 5: Solve for x
    x = 4,473,868,289.88/68,496.75
  6. Step 6: Final answer
    x = 65,315.04

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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.