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Finding the Fourth Proportional to 124,354.50, 171,609.21 and 67,765.89

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Solution

The fourth proportional to 124,354.50, 171,609.21 and 67,765.89 is: 93,516.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,354.50 : 171,609.21 = 67,765.89 : x
  2. Step 2: Convert to fraction form
    124,354.50/171,609.21 = 67,765.89/x
  3. Step 3: Cross multiply
    124,354.50x = 171,609.21 × 67,765.89
  4. Step 4: Simplify right side
    124,354.50x = 11,629,250,847.85
  5. Step 5: Solve for x
    x = 11,629,250,847.85/124,354.50
  6. Step 6: Final answer
    x = 93,516.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.