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Finding the Fourth Proportional to 195,297.89, 269,539.79 and 123,684.57

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Solution

The fourth proportional to 195,297.89, 269,539.79 and 123,684.57 is: 170,702.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,297.89 : 269,539.79 = 123,684.57 : x
  2. Step 2: Convert to fraction form
    195,297.89/269,539.79 = 123,684.57/x
  3. Step 3: Cross multiply
    195,297.89x = 269,539.79 × 123,684.57
  4. Step 4: Simplify right side
    195,297.89x = 33,337,912,405.62
  5. Step 5: Solve for x
    x = 33,337,912,405.62/195,297.89
  6. Step 6: Final answer
    x = 170,702.89

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1.5x scale

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.