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Finding the Fourth Proportional to 60,236.49, 90,369.05 and 20,793.93

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Solution

The fourth proportional to 60,236.49, 90,369.05 and 20,793.93 is: 31,195.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,236.49 : 90,369.05 = 20,793.93 : x
  2. Step 2: Convert to fraction form
    60,236.49/90,369.05 = 20,793.93/x
  3. Step 3: Cross multiply
    60,236.49x = 90,369.05 × 20,793.93
  4. Step 4: Simplify right side
    60,236.49x = 1,879,127,595.90
  5. Step 5: Solve for x
    x = 1,879,127,595.90/60,236.49
  6. Step 6: Final answer
    x = 31,195.83

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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.