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Finding the Fourth Proportional to 67,372.56, 92,978.38 and 38,701.19

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Solution

The fourth proportional to 67,372.56, 92,978.38 and 38,701.19 is: 53,410.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,372.56 : 92,978.38 = 38,701.19 : x
  2. Step 2: Convert to fraction form
    67,372.56/92,978.38 = 38,701.19/x
  3. Step 3: Cross multiply
    67,372.56x = 92,978.38 × 38,701.19
  4. Step 4: Simplify right side
    67,372.56x = 3,598,374,231.09
  5. Step 5: Solve for x
    x = 3,598,374,231.09/67,372.56
  6. Step 6: Final answer
    x = 53,410.09

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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.