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Finding the Fourth Proportional to 90,556.64, 135,834.95 and 34,396.61

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Solution

The fourth proportional to 90,556.64, 135,834.95 and 34,396.61 is: 51,594.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,556.64 : 135,834.95 = 34,396.61 : x
  2. Step 2: Convert to fraction form
    90,556.64/135,834.95 = 34,396.61/x
  3. Step 3: Cross multiply
    90,556.64x = 135,834.95 × 34,396.61
  4. Step 4: Simplify right side
    90,556.64x = 4,672,260,948.36
  5. Step 5: Solve for x
    x = 4,672,260,948.36/90,556.64
  6. Step 6: Final answer
    x = 51,594.90

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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.