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Finding the Fourth Proportional to 144,722.80, 217,084.20 and 127,226.80

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Solution

The fourth proportional to 144,722.80, 217,084.20 and 127,226.80 is: 190,840.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,722.80 : 217,084.20 = 127,226.80 : x
  2. Step 2: Convert to fraction form
    144,722.80/217,084.20 = 127,226.80/x
  3. Step 3: Cross multiply
    144,722.80x = 217,084.20 × 127,226.80
  4. Step 4: Simplify right side
    144,722.80x = 27,618,928,096.56
  5. Step 5: Solve for x
    x = 27,618,928,096.56/144,722.80
  6. Step 6: Final answer
    x = 190,840.20

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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.