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Finding the Fourth Proportional to 68,953.38, 95,179.78 and 40,657.26

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Solution

The fourth proportional to 68,953.38, 95,179.78 and 40,657.26 is: 56,121.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,953.38 : 95,179.78 = 40,657.26 : x
  2. Step 2: Convert to fraction form
    68,953.38/95,179.78 = 40,657.26/x
  3. Step 3: Cross multiply
    68,953.38x = 95,179.78 × 40,657.26
  4. Step 4: Simplify right side
    68,953.38x = 3,869,749,062.20
  5. Step 5: Solve for x
    x = 3,869,749,062.20/68,953.38
  6. Step 6: Final answer
    x = 56,121.24

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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.