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Finding the Fourth Proportional to 58,814, 81,163.43 and 31,956.54

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Solution

The fourth proportional to 58,814, 81,163.43 and 31,956.54 is: 44,100.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,814 : 81,163.43 = 31,956.54 : x
  2. Step 2: Convert to fraction form
    58,814/81,163.43 = 31,956.54/x
  3. Step 3: Cross multiply
    58,814x = 81,163.43 × 31,956.54
  4. Step 4: Simplify right side
    58,814x = 2,593,702,397.33
  5. Step 5: Solve for x
    x = 2,593,702,397.33/58,814
  6. Step 6: Final answer
    x = 44,100.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.