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Finding the Fourth Proportional to 178,866.90, 268,198.29 and 73,560.42

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Solution

The fourth proportional to 178,866.90, 268,198.29 and 73,560.42 is: 110,298.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,866.90 : 268,198.29 = 73,560.42 : x
  2. Step 2: Convert to fraction form
    178,866.90/268,198.29 = 73,560.42/x
  3. Step 3: Cross multiply
    178,866.90x = 268,198.29 × 73,560.42
  4. Step 4: Simplify right side
    178,866.90x = 19,728,778,855.68
  5. Step 5: Solve for x
    x = 19,728,778,855.68/178,866.90
  6. Step 6: Final answer
    x = 110,298.66

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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.