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Finding the Fourth Proportional to 61,168.80, 91,753.20 and 29,997.60

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Solution

The fourth proportional to 61,168.80, 91,753.20 and 29,997.60 is: 44,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,168.80 : 91,753.20 = 29,997.60 : x
  2. Step 2: Convert to fraction form
    61,168.80/91,753.20 = 29,997.60/x
  3. Step 3: Cross multiply
    61,168.80x = 91,753.20 × 29,997.60
  4. Step 4: Simplify right side
    61,168.80x = 2,752,375,792.32
  5. Step 5: Solve for x
    x = 2,752,375,792.32/61,168.80
  6. Step 6: Final answer
    x = 44,996.40

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1.5x scale

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.