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Finding the Fourth Proportional to 382,155.20, 573,232.80 and 115,902.80

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Solution

The fourth proportional to 382,155.20, 573,232.80 and 115,902.80 is: 173,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,155.20 : 573,232.80 = 115,902.80 : x
  2. Step 2: Convert to fraction form
    382,155.20/573,232.80 = 115,902.80/x
  3. Step 3: Cross multiply
    382,155.20x = 573,232.80 × 115,902.80
  4. Step 4: Simplify right side
    382,155.20x = 66,439,286,571.84
  5. Step 5: Solve for x
    x = 66,439,286,571.84/382,155.20
  6. Step 6: Final answer
    x = 173,854.20

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Similar ratio
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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.