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Finding the Fourth Proportional to 355,708.50, 533,523.43 and 89,469.11

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Solution

The fourth proportional to 355,708.50, 533,523.43 and 89,469.11 is: 134,193.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,708.50 : 533,523.43 = 89,469.11 : x
  2. Step 2: Convert to fraction form
    355,708.50/533,523.43 = 89,469.11/x
  3. Step 3: Cross multiply
    355,708.50x = 533,523.43 × 89,469.11
  4. Step 4: Simplify right side
    355,708.50x = 47,733,866,446.25
  5. Step 5: Solve for x
    x = 47,733,866,446.25/355,708.50
  6. Step 6: Final answer
    x = 134,193.78

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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.