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Finding the Fourth Proportional to 351,107.69, 526,617.15 and 111,245.93

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Solution

The fourth proportional to 351,107.69, 526,617.15 and 111,245.93 is: 166,854.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,107.69 : 526,617.15 = 111,245.93 : x
  2. Step 2: Convert to fraction form
    351,107.69/526,617.15 = 111,245.93/x
  3. Step 3: Cross multiply
    351,107.69x = 526,617.15 × 111,245.93
  4. Step 4: Simplify right side
    351,107.69x = 58,584,015,644.13
  5. Step 5: Solve for x
    x = 58,584,015,644.13/351,107.69
  6. Step 6: Final answer
    x = 166,854.83

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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.