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Finding the Fourth Proportional to 92,420.88, 138,616.08 and 33,245.52

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Solution

The fourth proportional to 92,420.88, 138,616.08 and 33,245.52 is: 49,862.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,420.88 : 138,616.08 = 33,245.52 : x
  2. Step 2: Convert to fraction form
    92,420.88/138,616.08 = 33,245.52/x
  3. Step 3: Cross multiply
    92,420.88x = 138,616.08 × 33,245.52
  4. Step 4: Simplify right side
    92,420.88x = 4,608,363,659.96
  5. Step 5: Solve for x
    x = 4,608,363,659.96/92,420.88
  6. Step 6: Final answer
    x = 49,862.80

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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.