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Finding the Fourth Proportional to 189,969.80, 284,954.70 and 177,528.20

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Solution

The fourth proportional to 189,969.80, 284,954.70 and 177,528.20 is: 266,292.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,969.80 : 284,954.70 = 177,528.20 : x
  2. Step 2: Convert to fraction form
    189,969.80/284,954.70 = 177,528.20/x
  3. Step 3: Cross multiply
    189,969.80x = 284,954.70 × 177,528.20
  4. Step 4: Simplify right side
    189,969.80x = 50,587,494,972.54
  5. Step 5: Solve for x
    x = 50,587,494,972.54/189,969.80
  6. Step 6: Final answer
    x = 266,292.30

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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.