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Finding the Fourth Proportional to 70,610.61, 105,933.84 and 32,687.22

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Solution

The fourth proportional to 70,610.61, 105,933.84 and 32,687.22 is: 49,039.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,610.61 : 105,933.84 = 32,687.22 : x
  2. Step 2: Convert to fraction form
    70,610.61/105,933.84 = 32,687.22/x
  3. Step 3: Cross multiply
    70,610.61x = 105,933.84 × 32,687.22
  4. Step 4: Simplify right side
    70,610.61x = 3,462,682,234.13
  5. Step 5: Solve for x
    x = 3,462,682,234.13/70,610.61
  6. Step 6: Final answer
    x = 49,039.12

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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.