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Finding the Fourth Proportional to 68,852.45, 103,195.63 and 35,554.37

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Solution

The fourth proportional to 68,852.45, 103,195.63 and 35,554.37 is: 53,288.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,852.45 : 103,195.63 = 35,554.37 : x
  2. Step 2: Convert to fraction form
    68,852.45/103,195.63 = 35,554.37/x
  3. Step 3: Cross multiply
    68,852.45x = 103,195.63 × 35,554.37
  4. Step 4: Simplify right side
    68,852.45x = 3,669,055,139.87
  5. Step 5: Solve for x
    x = 3,669,055,139.87/68,852.45
  6. Step 6: Final answer
    x = 53,288.66

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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.