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Finding the Fourth Proportional to 61,176.56, 91,748.20 and 16,792.80

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Solution

The fourth proportional to 61,176.56, 91,748.20 and 16,792.80 is: 25,184.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,176.56 : 91,748.20 = 16,792.80 : x
  2. Step 2: Convert to fraction form
    61,176.56/91,748.20 = 16,792.80/x
  3. Step 3: Cross multiply
    61,176.56x = 91,748.20 × 16,792.80
  4. Step 4: Simplify right side
    61,176.56x = 1,540,709,172.96
  5. Step 5: Solve for x
    x = 1,540,709,172.96/61,176.56
  6. Step 6: Final answer
    x = 25,184.63

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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.