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Finding the Fourth Proportional to 403,767.20, 605,722.12 and 166,977.20

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Solution

The fourth proportional to 403,767.20, 605,722.12 and 166,977.20 is: 250,495.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,767.20 : 605,722.12 = 166,977.20 : x
  2. Step 2: Convert to fraction form
    403,767.20/605,722.12 = 166,977.20/x
  3. Step 3: Cross multiply
    403,767.20x = 605,722.12 × 166,977.20
  4. Step 4: Simplify right side
    403,767.20x = 101,141,783,575.66
  5. Step 5: Solve for x
    x = 101,141,783,575.66/403,767.20
  6. Step 6: Final answer
    x = 250,495.29

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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.