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Finding the Fourth Proportional to 382,209.70, 573,314.55 and 115,957.30

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Solution

The fourth proportional to 382,209.70, 573,314.55 and 115,957.30 is: 173,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,209.70 : 573,314.55 = 115,957.30 : x
  2. Step 2: Convert to fraction form
    382,209.70/573,314.55 = 115,957.30/x
  3. Step 3: Cross multiply
    382,209.70x = 573,314.55 × 115,957.30
  4. Step 4: Simplify right side
    382,209.70x = 66,480,007,268.72
  5. Step 5: Solve for x
    x = 66,480,007,268.72/382,209.70
  6. Step 6: Final answer
    x = 173,935.95

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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.