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Finding the Fourth Proportional to 92,484.20, 138,726.30 and 33,321.80

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Solution

The fourth proportional to 92,484.20, 138,726.30 and 33,321.80 is: 49,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,484.20 : 138,726.30 = 33,321.80 : x
  2. Step 2: Convert to fraction form
    92,484.20/138,726.30 = 33,321.80/x
  3. Step 3: Cross multiply
    92,484.20x = 138,726.30 × 33,321.80
  4. Step 4: Simplify right side
    92,484.20x = 4,622,610,023.34
  5. Step 5: Solve for x
    x = 4,622,610,023.34/92,484.20
  6. Step 6: Final answer
    x = 49,982.70

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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.