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Finding the Fourth Proportional to 174,771, 261,592.61 and 90,414.99

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Solution

The fourth proportional to 174,771, 261,592.61 and 90,414.99 is: 135,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,771 : 261,592.61 = 90,414.99 : x
  2. Step 2: Convert to fraction form
    174,771/261,592.61 = 90,414.99/x
  3. Step 3: Cross multiply
    174,771x = 261,592.61 × 90,414.99
  4. Step 4: Simplify right side
    174,771x = 23,651,892,765.15
  5. Step 5: Solve for x
    x = 23,651,892,765.15/174,771
  6. Step 6: Final answer
    x = 135,330.76

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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.