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Finding the Fourth Proportional to 92,563.92, 138,845.91 and 29,390.76

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Solution

The fourth proportional to 92,563.92, 138,845.91 and 29,390.76 is: 44,086.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,563.92 : 138,845.91 = 29,390.76 : x
  2. Step 2: Convert to fraction form
    92,563.92/138,845.91 = 29,390.76/x
  3. Step 3: Cross multiply
    92,563.92x = 138,845.91 × 29,390.76
  4. Step 4: Simplify right side
    92,563.92x = 4,080,786,817.79
  5. Step 5: Solve for x
    x = 4,080,786,817.79/92,563.92
  6. Step 6: Final answer
    x = 44,086.15

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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.