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Finding the Fourth Proportional to 92,382, 138,619.20 and 33,230.96

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Solution

The fourth proportional to 92,382, 138,619.20 and 33,230.96 is: 49,863.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,382 : 138,619.20 = 33,230.96 : x
  2. Step 2: Convert to fraction form
    92,382/138,619.20 = 33,230.96/x
  3. Step 3: Cross multiply
    92,382x = 138,619.20 × 33,230.96
  4. Step 4: Simplify right side
    92,382x = 4,606,449,090.43
  5. Step 5: Solve for x
    x = 4,606,449,090.43/92,382
  6. Step 6: Final answer
    x = 49,863.06

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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.