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Finding the Fourth Proportional to 137,910.90, 206,914.95 and 133,050.90

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Solution

The fourth proportional to 137,910.90, 206,914.95 and 133,050.90 is: 199,623.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,910.90 : 206,914.95 = 133,050.90 : x
  2. Step 2: Convert to fraction form
    137,910.90/206,914.95 = 133,050.90/x
  3. Step 3: Cross multiply
    137,910.90x = 206,914.95 × 133,050.90
  4. Step 4: Simplify right side
    137,910.90x = 27,530,220,320.96
  5. Step 5: Solve for x
    x = 27,530,220,320.96/137,910.90
  6. Step 6: Final answer
    x = 199,623.24

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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.