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Finding the Fourth Proportional to 61,122.36, 91,661.67 and 33,063.15

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Solution

The fourth proportional to 61,122.36, 91,661.67 and 33,063.15 is: 49,582.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,122.36 : 91,661.67 = 33,063.15 : x
  2. Step 2: Convert to fraction form
    61,122.36/91,661.67 = 33,063.15/x
  3. Step 3: Cross multiply
    61,122.36x = 91,661.67 × 33,063.15
  4. Step 4: Simplify right side
    61,122.36x = 3,030,623,544.46
  5. Step 5: Solve for x
    x = 3,030,623,544.46/61,122.36
  6. Step 6: Final answer
    x = 49,582.89

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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.