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Finding the Fourth Proportional to 68,063.67, 93,914.10 and 39,763.89

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Solution

The fourth proportional to 68,063.67, 93,914.10 and 39,763.89 is: 54,866.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,063.67 : 93,914.10 = 39,763.89 : x
  2. Step 2: Convert to fraction form
    68,063.67/93,914.10 = 39,763.89/x
  3. Step 3: Cross multiply
    68,063.67x = 93,914.10 × 39,763.89
  4. Step 4: Simplify right side
    68,063.67x = 3,734,389,941.85
  5. Step 5: Solve for x
    x = 3,734,389,941.85/68,063.67
  6. Step 6: Final answer
    x = 54,866.13

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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.