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Finding the Fourth Proportional to 192,900.40, 289,350.60 and 161,796.40

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Solution

The fourth proportional to 192,900.40, 289,350.60 and 161,796.40 is: 242,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,900.40 : 289,350.60 = 161,796.40 : x
  2. Step 2: Convert to fraction form
    192,900.40/289,350.60 = 161,796.40/x
  3. Step 3: Cross multiply
    192,900.40x = 289,350.60 × 161,796.40
  4. Step 4: Simplify right side
    192,900.40x = 46,815,885,417.84
  5. Step 5: Solve for x
    x = 46,815,885,417.84/192,900.40
  6. Step 6: Final answer
    x = 242,694.60

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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.