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Finding the Fourth Proportional to 61,136.65, 91,731.39 and 33,076.45

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Solution

The fourth proportional to 61,136.65, 91,731.39 and 33,076.45 is: 49,628.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,136.65 : 91,731.39 = 33,076.45 : x
  2. Step 2: Convert to fraction form
    61,136.65/91,731.39 = 33,076.45/x
  3. Step 3: Cross multiply
    61,136.65x = 91,731.39 × 33,076.45
  4. Step 4: Simplify right side
    61,136.65x = 3,034,148,734.77
  5. Step 5: Solve for x
    x = 3,034,148,734.77/61,136.65
  6. Step 6: Final answer
    x = 49,628.97

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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.