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Finding the Fourth Proportional to 317,910.85, 476,846.96 and 112,755.67

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Solution

The fourth proportional to 317,910.85, 476,846.96 and 112,755.67 is: 169,126.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,910.85 : 476,846.96 = 112,755.67 : x
  2. Step 2: Convert to fraction form
    317,910.85/476,846.96 = 112,755.67/x
  3. Step 3: Cross multiply
    317,910.85x = 476,846.96 × 112,755.67
  4. Step 4: Simplify right side
    317,910.85x = 53,767,198,462.26
  5. Step 5: Solve for x
    x = 53,767,198,462.26/317,910.85
  6. Step 6: Final answer
    x = 169,126.65

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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.