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Finding the Fourth Proportional to 318,796.08, 439,932.60 and 175,553.04

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Solution

The fourth proportional to 318,796.08, 439,932.60 and 175,553.04 is: 242,259.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,796.08 : 439,932.60 = 175,553.04 : x
  2. Step 2: Convert to fraction form
    318,796.08/439,932.60 = 175,553.04/x
  3. Step 3: Cross multiply
    318,796.08x = 439,932.60 × 175,553.04
  4. Step 4: Simplify right side
    318,796.08x = 77,231,505,325.10
  5. Step 5: Solve for x
    x = 77,231,505,325.10/318,796.08
  6. Step 6: Final answer
    x = 242,259.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.