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Finding the Fourth Proportional to 101,374.98, 139,891.46 and 56,049.41

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Solution

The fourth proportional to 101,374.98, 139,891.46 and 56,049.41 is: 77,344.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,374.98 : 139,891.46 = 56,049.41 : x
  2. Step 2: Convert to fraction form
    101,374.98/139,891.46 = 56,049.41/x
  3. Step 3: Cross multiply
    101,374.98x = 139,891.46 × 56,049.41
  4. Step 4: Simplify right side
    101,374.98x = 7,840,832,817.33
  5. Step 5: Solve for x
    x = 7,840,832,817.33/101,374.98
  6. Step 6: Final answer
    x = 77,344.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.