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Finding the Fourth Proportional to 221,166.86, 331,751.14 and 67,294.35

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Solution

The fourth proportional to 221,166.86, 331,751.14 and 67,294.35 is: 100,941.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,166.86 : 331,751.14 = 67,294.35 : x
  2. Step 2: Convert to fraction form
    221,166.86/331,751.14 = 67,294.35/x
  3. Step 3: Cross multiply
    221,166.86x = 331,751.14 × 67,294.35
  4. Step 4: Simplify right side
    221,166.86x = 22,324,977,345.77
  5. Step 5: Solve for x
    x = 22,324,977,345.77/221,166.86
  6. Step 6: Final answer
    x = 100,941.79

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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.