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Finding the Fourth Proportional to 55,858.79, 77,163.45 and 50,814.11

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Solution

The fourth proportional to 55,858.79, 77,163.45 and 50,814.11 is: 70,194.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,858.79 : 77,163.45 = 50,814.11 : x
  2. Step 2: Convert to fraction form
    55,858.79/77,163.45 = 50,814.11/x
  3. Step 3: Cross multiply
    55,858.79x = 77,163.45 × 50,814.11
  4. Step 4: Simplify right side
    55,858.79x = 3,920,991,650.46
  5. Step 5: Solve for x
    x = 3,920,991,650.46/55,858.79
  6. Step 6: Final answer
    x = 70,194.72

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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.