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Finding the Fourth Proportional to 227,712.30, 341,787.15 and 115,519.20

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Solution

The fourth proportional to 227,712.30, 341,787.15 and 115,519.20 is: 173,389.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,712.30 : 341,787.15 = 115,519.20 : x
  2. Step 2: Convert to fraction form
    227,712.30/341,787.15 = 115,519.20/x
  3. Step 3: Cross multiply
    227,712.30x = 341,787.15 × 115,519.20
  4. Step 4: Simplify right side
    227,712.30x = 39,482,978,138.28
  5. Step 5: Solve for x
    x = 39,482,978,138.28/227,712.30
  6. Step 6: Final answer
    x = 173,389.75

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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.