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Finding the Fourth Proportional to 125,847.72, 188,972.22 and 73,295.40

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Solution

The fourth proportional to 125,847.72, 188,972.22 and 73,295.40 is: 110,059.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,847.72 : 188,972.22 = 73,295.40 : x
  2. Step 2: Convert to fraction form
    125,847.72/188,972.22 = 73,295.40/x
  3. Step 3: Cross multiply
    125,847.72x = 188,972.22 × 73,295.40
  4. Step 4: Simplify right side
    125,847.72x = 13,850,794,453.79
  5. Step 5: Solve for x
    x = 13,850,794,453.79/125,847.72
  6. Step 6: Final answer
    x = 110,059.96

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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.