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Finding the Fourth Proportional to 192,873.97, 289,324.82 and 66,512.40

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Solution

The fourth proportional to 192,873.97, 289,324.82 and 66,512.40 is: 99,773.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,873.97 : 289,324.82 = 66,512.40 : x
  2. Step 2: Convert to fraction form
    192,873.97/289,324.82 = 66,512.40/x
  3. Step 3: Cross multiply
    192,873.97x = 289,324.82 × 66,512.40
  4. Step 4: Simplify right side
    192,873.97x = 19,243,687,101.89
  5. Step 5: Solve for x
    x = 19,243,687,101.89/192,873.97
  6. Step 6: Final answer
    x = 99,773.38

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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.