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Finding the Fourth Proportional to 68,305.88, 102,461.96 and 25,621.52

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Solution

The fourth proportional to 68,305.88, 102,461.96 and 25,621.52 is: 38,433.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,305.88 : 102,461.96 = 25,621.52 : x
  2. Step 2: Convert to fraction form
    68,305.88/102,461.96 = 25,621.52/x
  3. Step 3: Cross multiply
    68,305.88x = 102,461.96 × 25,621.52
  4. Step 4: Simplify right side
    68,305.88x = 2,625,230,709.12
  5. Step 5: Solve for x
    x = 2,625,230,709.12/68,305.88
  6. Step 6: Final answer
    x = 38,433.45

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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.