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Finding the Fourth Proportional to 68,060.64, 102,075.30 and 25,945.50

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Solution

The fourth proportional to 68,060.64, 102,075.30 and 25,945.50 is: 38,912.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,060.64 : 102,075.30 = 25,945.50 : x
  2. Step 2: Convert to fraction form
    68,060.64/102,075.30 = 25,945.50/x
  3. Step 3: Cross multiply
    68,060.64x = 102,075.30 × 25,945.50
  4. Step 4: Simplify right side
    68,060.64x = 2,648,394,696.15
  5. Step 5: Solve for x
    x = 2,648,394,696.15/68,060.64
  6. Step 6: Final answer
    x = 38,912.28

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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.