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Finding the Fourth Proportional to 68,709.22, 103,039.52 and 32,681.44

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Solution

The fourth proportional to 68,709.22, 103,039.52 and 32,681.44 is: 49,010.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,709.22 : 103,039.52 = 32,681.44 : x
  2. Step 2: Convert to fraction form
    68,709.22/103,039.52 = 32,681.44/x
  3. Step 3: Cross multiply
    68,709.22x = 103,039.52 × 32,681.44
  4. Step 4: Simplify right side
    68,709.22x = 3,367,479,890.51
  5. Step 5: Solve for x
    x = 3,367,479,890.51/68,709.22
  6. Step 6: Final answer
    x = 49,010.60

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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.