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Finding the Fourth Proportional to 192,876.98, 289,334.48 and 66,500.58

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Solution

The fourth proportional to 192,876.98, 289,334.48 and 66,500.58 is: 99,757.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,876.98 : 289,334.48 = 66,500.58 : x
  2. Step 2: Convert to fraction form
    192,876.98/289,334.48 = 66,500.58/x
  3. Step 3: Cross multiply
    192,876.98x = 289,334.48 × 66,500.58
  4. Step 4: Simplify right side
    192,876.98x = 19,240,910,401.50
  5. Step 5: Solve for x
    x = 19,240,910,401.50/192,876.98
  6. Step 6: Final answer
    x = 99,757.43

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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.