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Finding the Fourth Proportional to 68,446.53, 102,673.44 and 21,703.05

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Solution

The fourth proportional to 68,446.53, 102,673.44 and 21,703.05 is: 32,555.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,446.53 : 102,673.44 = 21,703.05 : x
  2. Step 2: Convert to fraction form
    68,446.53/102,673.44 = 21,703.05/x
  3. Step 3: Cross multiply
    68,446.53x = 102,673.44 × 21,703.05
  4. Step 4: Simplify right side
    68,446.53x = 2,228,326,801.99
  5. Step 5: Solve for x
    x = 2,228,326,801.99/68,446.53
  6. Step 6: Final answer
    x = 32,555.73

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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.