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Finding the Fourth Proportional to 422,296.08, 633,465.90 and 106,755.72

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Solution

The fourth proportional to 422,296.08, 633,465.90 and 106,755.72 is: 160,139.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,296.08 : 633,465.90 = 106,755.72 : x
  2. Step 2: Convert to fraction form
    422,296.08/633,465.90 = 106,755.72/x
  3. Step 3: Cross multiply
    422,296.08x = 633,465.90 × 106,755.72
  4. Step 4: Simplify right side
    422,296.08x = 67,626,108,249.95
  5. Step 5: Solve for x
    x = 67,626,108,249.95/422,296.08
  6. Step 6: Final answer
    x = 160,139.09

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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.