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Finding the Fourth Proportional to 92,468.90, 138,619.10 and 33,291.12

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Solution

The fourth proportional to 92,468.90, 138,619.10 and 33,291.12 is: 49,906.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,468.90 : 138,619.10 = 33,291.12 : x
  2. Step 2: Convert to fraction form
    92,468.90/138,619.10 = 33,291.12/x
  3. Step 3: Cross multiply
    92,468.90x = 138,619.10 × 33,291.12
  4. Step 4: Simplify right side
    92,468.90x = 4,614,785,092.39
  5. Step 5: Solve for x
    x = 4,614,785,092.39/92,468.90
  6. Step 6: Final answer
    x = 49,906.35

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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.