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Finding the Fourth Proportional to 327,671.10, 492,025.05 and 239,543.10

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Solution

The fourth proportional to 327,671.10, 492,025.05 and 239,543.10 is: 359,693.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,671.10 : 492,025.05 = 239,543.10 : x
  2. Step 2: Convert to fraction form
    327,671.10/492,025.05 = 239,543.10/x
  3. Step 3: Cross multiply
    327,671.10x = 492,025.05 × 239,543.10
  4. Step 4: Simplify right side
    327,671.10x = 117,861,205,754.66
  5. Step 5: Solve for x
    x = 117,861,205,754.66/327,671.10
  6. Step 6: Final answer
    x = 359,693.62

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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.