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Finding the Fourth Proportional to 68,502.75, 102,784.92 and 43,536.33

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Solution

The fourth proportional to 68,502.75, 102,784.92 and 43,536.33 is: 65,324.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,502.75 : 102,784.92 = 43,536.33 : x
  2. Step 2: Convert to fraction form
    68,502.75/102,784.92 = 43,536.33/x
  3. Step 3: Cross multiply
    68,502.75x = 102,784.92 × 43,536.33
  4. Step 4: Simplify right side
    68,502.75x = 4,474,878,196.14
  5. Step 5: Solve for x
    x = 4,474,878,196.14/68,502.75
  6. Step 6: Final answer
    x = 65,324.07

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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.