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Finding the Fourth Proportional to 270,981.60, 405,694.80 and 166,005.60

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Solution

The fourth proportional to 270,981.60, 405,694.80 and 166,005.60 is: 248,532.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,981.60 : 405,694.80 = 166,005.60 : x
  2. Step 2: Convert to fraction form
    270,981.60/405,694.80 = 166,005.60/x
  3. Step 3: Cross multiply
    270,981.60x = 405,694.80 × 166,005.60
  4. Step 4: Simplify right side
    270,981.60x = 67,347,608,690.88
  5. Step 5: Solve for x
    x = 67,347,608,690.88/270,981.60
  6. Step 6: Final answer
    x = 248,532.04

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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.