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Finding the Fourth Proportional to 91,173.39, 125,806.73 and 50,883.38

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Solution

The fourth proportional to 91,173.39, 125,806.73 and 50,883.38 is: 70,212.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,173.39 : 125,806.73 = 50,883.38 : x
  2. Step 2: Convert to fraction form
    91,173.39/125,806.73 = 50,883.38/x
  3. Step 3: Cross multiply
    91,173.39x = 125,806.73 × 50,883.38
  4. Step 4: Simplify right side
    91,173.39x = 6,401,471,649.15
  5. Step 5: Solve for x
    x = 6,401,471,649.15/91,173.39
  6. Step 6: Final answer
    x = 70,212.06

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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.