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Finding the Fourth Proportional to 61,156.21, 91,736.07 and 16,783.33

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Solution

The fourth proportional to 61,156.21, 91,736.07 and 16,783.33 is: 25,175.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,156.21 : 91,736.07 = 16,783.33 : x
  2. Step 2: Convert to fraction form
    61,156.21/91,736.07 = 16,783.33/x
  3. Step 3: Cross multiply
    61,156.21x = 91,736.07 × 16,783.33
  4. Step 4: Simplify right side
    61,156.21x = 1,539,636,735.71
  5. Step 5: Solve for x
    x = 1,539,636,735.71/61,156.21
  6. Step 6: Final answer
    x = 25,175.48

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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.