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Finding the Fourth Proportional to 60,241.74, 90,376.92 and 20,799.18

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Solution

The fourth proportional to 60,241.74, 90,376.92 and 20,799.18 is: 31,203.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,241.74 : 90,376.92 = 20,799.18 : x
  2. Step 2: Convert to fraction form
    60,241.74/90,376.92 = 20,799.18/x
  3. Step 3: Cross multiply
    60,241.74x = 90,376.92 × 20,799.18
  4. Step 4: Simplify right side
    60,241.74x = 1,879,765,826.93
  5. Step 5: Solve for x
    x = 1,879,765,826.93/60,241.74
  6. Step 6: Final answer
    x = 31,203.71

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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.