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Finding the Fourth Proportional to 131,083.88, 196,202.88 and 67,816.87

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Solution

The fourth proportional to 131,083.88, 196,202.88 and 67,816.87 is: 101,506.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,083.88 : 196,202.88 = 67,816.87 : x
  2. Step 2: Convert to fraction form
    131,083.88/196,202.88 = 67,816.87/x
  3. Step 3: Cross multiply
    131,083.88x = 196,202.88 × 67,816.87
  4. Step 4: Simplify right side
    131,083.88x = 13,305,864,716.08
  5. Step 5: Solve for x
    x = 13,305,864,716.08/131,083.88
  6. Step 6: Final answer
    x = 101,506.50

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1.5x scale

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.