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Finding the Fourth Proportional to 68,967.72, 95,169.33 and 42,100.43

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Solution

The fourth proportional to 68,967.72, 95,169.33 and 42,100.43 is: 58,094.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,967.72 : 95,169.33 = 42,100.43 : x
  2. Step 2: Convert to fraction form
    68,967.72/95,169.33 = 42,100.43/x
  3. Step 3: Cross multiply
    68,967.72x = 95,169.33 × 42,100.43
  4. Step 4: Simplify right side
    68,967.72x = 4,006,669,239.97
  5. Step 5: Solve for x
    x = 4,006,669,239.97/68,967.72
  6. Step 6: Final answer
    x = 58,094.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.