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Finding the Fourth Proportional to 68,708.83, 94,824.30 and 38,493.96

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Solution

The fourth proportional to 68,708.83, 94,824.30 and 38,493.96 is: 53,125.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,708.83 : 94,824.30 = 38,493.96 : x
  2. Step 2: Convert to fraction form
    68,708.83/94,824.30 = 38,493.96/x
  3. Step 3: Cross multiply
    68,708.83x = 94,824.30 × 38,493.96
  4. Step 4: Simplify right side
    68,708.83x = 3,650,162,811.23
  5. Step 5: Solve for x
    x = 3,650,162,811.23/68,708.83
  6. Step 6: Final answer
    x = 53,125.09

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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.