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Finding the Fourth Proportional to 61,137.89, 91,706.97 and 16,765.28

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Solution

The fourth proportional to 61,137.89, 91,706.97 and 16,765.28 is: 25,147.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,137.89 : 91,706.97 = 16,765.28 : x
  2. Step 2: Convert to fraction form
    61,137.89/91,706.97 = 16,765.28/x
  3. Step 3: Cross multiply
    61,137.89x = 91,706.97 × 16,765.28
  4. Step 4: Simplify right side
    61,137.89x = 1,537,493,030.00
  5. Step 5: Solve for x
    x = 1,537,493,030.00/61,137.89
  6. Step 6: Final answer
    x = 25,147.96

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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.