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Finding the Fourth Proportional to 71,699.43, 107,234.46 and 63,857.01

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Solution

The fourth proportional to 71,699.43, 107,234.46 and 63,857.01 is: 95,505.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,699.43 : 107,234.46 = 63,857.01 : x
  2. Step 2: Convert to fraction form
    71,699.43/107,234.46 = 63,857.01/x
  3. Step 3: Cross multiply
    71,699.43x = 107,234.46 × 63,857.01
  4. Step 4: Simplify right side
    71,699.43x = 6,847,671,984.56
  5. Step 5: Solve for x
    x = 6,847,671,984.56/71,699.43
  6. Step 6: Final answer
    x = 95,505.25

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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.