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Finding the Fourth Proportional to 67,981.60, 101,857.20 and 32,845.60

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Solution

The fourth proportional to 67,981.60, 101,857.20 and 32,845.60 is: 49,212.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,981.60 : 101,857.20 = 32,845.60 : x
  2. Step 2: Convert to fraction form
    67,981.60/101,857.20 = 32,845.60/x
  3. Step 3: Cross multiply
    67,981.60x = 101,857.20 × 32,845.60
  4. Step 4: Simplify right side
    67,981.60x = 3,345,560,848.32
  5. Step 5: Solve for x
    x = 3,345,560,848.32/67,981.60
  6. Step 6: Final answer
    x = 49,212.74

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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.