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Finding the Fourth Proportional to 56,471.93, 84,713.13 and 40,310.69

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Solution

The fourth proportional to 56,471.93, 84,713.13 and 40,310.69 is: 60,469.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,471.93 : 84,713.13 = 40,310.69 : x
  2. Step 2: Convert to fraction form
    56,471.93/84,713.13 = 40,310.69/x
  3. Step 3: Cross multiply
    56,471.93x = 84,713.13 × 40,310.69
  4. Step 4: Simplify right side
    56,471.93x = 3,414,844,298.79
  5. Step 5: Solve for x
    x = 3,414,844,298.79/56,471.93
  6. Step 6: Final answer
    x = 60,469.77

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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.