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Finding the Fourth Proportional to 61,132.86, 91,725.69 and 33,072.68

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Solution

The fourth proportional to 61,132.86, 91,725.69 and 33,072.68 is: 49,623.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,132.86 : 91,725.69 = 33,072.68 : x
  2. Step 2: Convert to fraction form
    61,132.86/91,725.69 = 33,072.68/x
  3. Step 3: Cross multiply
    61,132.86x = 91,725.69 × 33,072.68
  4. Step 4: Simplify right side
    61,132.86x = 3,033,614,393.15
  5. Step 5: Solve for x
    x = 3,033,614,393.15/61,132.86
  6. Step 6: Final answer
    x = 49,623.30

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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.