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Finding the Fourth Proportional to 90,559.26, 135,834.50 and 34,394.98

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Solution

The fourth proportional to 90,559.26, 135,834.50 and 34,394.98 is: 51,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,559.26 : 135,834.50 = 34,394.98 : x
  2. Step 2: Convert to fraction form
    90,559.26/135,834.50 = 34,394.98/x
  3. Step 3: Cross multiply
    90,559.26x = 135,834.50 × 34,394.98
  4. Step 4: Simplify right side
    90,559.26x = 4,672,024,910.81
  5. Step 5: Solve for x
    x = 4,672,024,910.81/90,559.26
  6. Step 6: Final answer
    x = 51,590.80

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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.