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Finding the Fourth Proportional to 268,893.75, 403,366.01 and 79,354.83

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Solution

The fourth proportional to 268,893.75, 403,366.01 and 79,354.83 is: 119,039.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,893.75 : 403,366.01 = 79,354.83 : x
  2. Step 2: Convert to fraction form
    268,893.75/403,366.01 = 79,354.83/x
  3. Step 3: Cross multiply
    268,893.75x = 403,366.01 × 79,354.83
  4. Step 4: Simplify right side
    268,893.75x = 32,009,040,754.55
  5. Step 5: Solve for x
    x = 32,009,040,754.55/268,893.75
  6. Step 6: Final answer
    x = 119,039.74

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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.