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Finding the Fourth Proportional to 92,002.28, 138,003.42 and 28,822.94

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Solution

The fourth proportional to 92,002.28, 138,003.42 and 28,822.94 is: 43,234.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,002.28 : 138,003.42 = 28,822.94 : x
  2. Step 2: Convert to fraction form
    92,002.28/138,003.42 = 28,822.94/x
  3. Step 3: Cross multiply
    92,002.28x = 138,003.42 × 28,822.94
  4. Step 4: Simplify right side
    92,002.28x = 3,977,664,294.45
  5. Step 5: Solve for x
    x = 3,977,664,294.45/92,002.28
  6. Step 6: Final answer
    x = 43,234.41

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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.