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Finding the Fourth Proportional to 90,958.62, 125,522.58 and 50,670

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Solution

The fourth proportional to 90,958.62, 125,522.58 and 50,670 is: 69,924.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,958.62 : 125,522.58 = 50,670 : x
  2. Step 2: Convert to fraction form
    90,958.62/125,522.58 = 50,670/x
  3. Step 3: Cross multiply
    90,958.62x = 125,522.58 × 50,670
  4. Step 4: Simplify right side
    90,958.62x = 6,360,229,128.60
  5. Step 5: Solve for x
    x = 6,360,229,128.60/90,958.62
  6. Step 6: Final answer
    x = 69,924.42

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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.