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Finding the Fourth Proportional to 68,397.16, 102,571.06 and 26,255.56

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Solution

The fourth proportional to 68,397.16, 102,571.06 and 26,255.56 is: 39,373.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,397.16 : 102,571.06 = 26,255.56 : x
  2. Step 2: Convert to fraction form
    68,397.16/102,571.06 = 26,255.56/x
  3. Step 3: Cross multiply
    68,397.16x = 102,571.06 × 26,255.56
  4. Step 4: Simplify right side
    68,397.16x = 2,693,060,620.09
  5. Step 5: Solve for x
    x = 2,693,060,620.09/68,397.16
  6. Step 6: Final answer
    x = 39,373.87

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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.