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Finding the Fourth Proportional to 268,892.88, 403,339.20 and 110,947.68

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Solution

The fourth proportional to 268,892.88, 403,339.20 and 110,947.68 is: 166,421.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,892.88 : 403,339.20 = 110,947.68 : x
  2. Step 2: Convert to fraction form
    268,892.88/403,339.20 = 110,947.68/x
  3. Step 3: Cross multiply
    268,892.88x = 403,339.20 × 110,947.68
  4. Step 4: Simplify right side
    268,892.88x = 44,749,548,493.06
  5. Step 5: Solve for x
    x = 44,749,548,493.06/268,892.88
  6. Step 6: Final answer
    x = 166,421.47

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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.