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Finding the Fourth Proportional to 265,546.30, 399,097.05 and 231,331.90

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Solution

The fourth proportional to 265,546.30, 399,097.05 and 231,331.90 is: 347,675.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,546.30 : 399,097.05 = 231,331.90 : x
  2. Step 2: Convert to fraction form
    265,546.30/399,097.05 = 231,331.90/x
  3. Step 3: Cross multiply
    265,546.30x = 399,097.05 × 231,331.90
  4. Step 4: Simplify right side
    265,546.30x = 92,323,878,860.90
  5. Step 5: Solve for x
    x = 92,323,878,860.90/265,546.30
  6. Step 6: Final answer
    x = 347,675.26

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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.