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Finding the Fourth Proportional to 92,253.11, 138,399.11 and 29,918.75

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Solution

The fourth proportional to 92,253.11, 138,399.11 and 29,918.75 is: 44,884.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,253.11 : 138,399.11 = 29,918.75 : x
  2. Step 2: Convert to fraction form
    92,253.11/138,399.11 = 29,918.75/x
  3. Step 3: Cross multiply
    92,253.11x = 138,399.11 × 29,918.75
  4. Step 4: Simplify right side
    92,253.11x = 4,140,728,222.72
  5. Step 5: Solve for x
    x = 4,140,728,222.72/92,253.11
  6. Step 6: Final answer
    x = 44,884.43

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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.