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Finding the Fourth Proportional to 61,158.68, 91,764.42 and 33,098.54

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Solution

The fourth proportional to 61,158.68, 91,764.42 and 33,098.54 is: 49,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,158.68 : 91,764.42 = 33,098.54 : x
  2. Step 2: Convert to fraction form
    61,158.68/91,764.42 = 33,098.54/x
  3. Step 3: Cross multiply
    61,158.68x = 91,764.42 × 33,098.54
  4. Step 4: Simplify right side
    61,158.68x = 3,037,267,965.14
  5. Step 5: Solve for x
    x = 3,037,267,965.14/61,158.68
  6. Step 6: Final answer
    x = 49,662.09

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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.