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Finding the Fourth Proportional to 68,801.88, 103,242.24 and 37,212.42

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Solution

The fourth proportional to 68,801.88, 103,242.24 and 37,212.42 is: 55,839.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,801.88 : 103,242.24 = 37,212.42 : x
  2. Step 2: Convert to fraction form
    68,801.88/103,242.24 = 37,212.42/x
  3. Step 3: Cross multiply
    68,801.88x = 103,242.24 × 37,212.42
  4. Step 4: Simplify right side
    68,801.88x = 3,841,893,596.62
  5. Step 5: Solve for x
    x = 3,841,893,596.62/68,801.88
  6. Step 6: Final answer
    x = 55,839.95

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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.