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Finding the Fourth Proportional to 68,926.37, 103,390.10 and 37,744.61

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Solution

The fourth proportional to 68,926.37, 103,390.10 and 37,744.61 is: 56,617.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,926.37 : 103,390.10 = 37,744.61 : x
  2. Step 2: Convert to fraction form
    68,926.37/103,390.10 = 37,744.61/x
  3. Step 3: Cross multiply
    68,926.37x = 103,390.10 × 37,744.61
  4. Step 4: Simplify right side
    68,926.37x = 3,902,418,813.64
  5. Step 5: Solve for x
    x = 3,902,418,813.64/68,926.37
  6. Step 6: Final answer
    x = 56,617.21

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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.