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Finding the Fourth Proportional to 68,012.76, 93,855.36 and 37,385.96

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Solution

The fourth proportional to 68,012.76, 93,855.36 and 37,385.96 is: 51,591.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,012.76 : 93,855.36 = 37,385.96 : x
  2. Step 2: Convert to fraction form
    68,012.76/93,855.36 = 37,385.96/x
  3. Step 3: Cross multiply
    68,012.76x = 93,855.36 × 37,385.96
  4. Step 4: Simplify right side
    68,012.76x = 3,508,872,593.57
  5. Step 5: Solve for x
    x = 3,508,872,593.57/68,012.76
  6. Step 6: Final answer
    x = 51,591.39

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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.