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Finding the Fourth Proportional to 68,410.16, 94,405.04 and 38,195.96

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Solution

The fourth proportional to 68,410.16, 94,405.04 and 38,195.96 is: 52,709.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,410.16 : 94,405.04 = 38,195.96 : x
  2. Step 2: Convert to fraction form
    68,410.16/94,405.04 = 38,195.96/x
  3. Step 3: Cross multiply
    68,410.16x = 94,405.04 × 38,195.96
  4. Step 4: Simplify right side
    68,410.16x = 3,605,890,826.72
  5. Step 5: Solve for x
    x = 3,605,890,826.72/68,410.16
  6. Step 6: Final answer
    x = 52,709.87

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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.