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Finding the Fourth Proportional to 92,581.52, 138,879.48 and 30,258.32

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Solution

The fourth proportional to 92,581.52, 138,879.48 and 30,258.32 is: 45,389.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,581.52 : 138,879.48 = 30,258.32 : x
  2. Step 2: Convert to fraction form
    92,581.52/138,879.48 = 30,258.32/x
  3. Step 3: Cross multiply
    92,581.52x = 138,879.48 × 30,258.32
  4. Step 4: Simplify right side
    92,581.52x = 4,202,259,747.27
  5. Step 5: Solve for x
    x = 4,202,259,747.27/92,581.52
  6. Step 6: Final answer
    x = 45,389.83

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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.