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Finding the Fourth Proportional to 68,375.70, 102,669.15 and 37,271.70

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Solution

The fourth proportional to 68,375.70, 102,669.15 and 37,271.70 is: 55,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,375.70 : 102,669.15 = 37,271.70 : x
  2. Step 2: Convert to fraction form
    68,375.70/102,669.15 = 37,271.70/x
  3. Step 3: Cross multiply
    68,375.70x = 102,669.15 × 37,271.70
  4. Step 4: Simplify right side
    68,375.70x = 3,826,653,758.06
  5. Step 5: Solve for x
    x = 3,826,653,758.06/68,375.70
  6. Step 6: Final answer
    x = 55,965.11

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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.