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Finding the Fourth Proportional to 190,014.80, 285,022.20 and 177,573.20

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Solution

The fourth proportional to 190,014.80, 285,022.20 and 177,573.20 is: 266,359.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,014.80 : 285,022.20 = 177,573.20 : x
  2. Step 2: Convert to fraction form
    190,014.80/285,022.20 = 177,573.20/x
  3. Step 3: Cross multiply
    190,014.80x = 285,022.20 × 177,573.20
  4. Step 4: Simplify right side
    190,014.80x = 50,612,304,125.04
  5. Step 5: Solve for x
    x = 50,612,304,125.04/190,014.80
  6. Step 6: Final answer
    x = 266,359.80

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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.