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Finding the Fourth Proportional to 193,070.60, 289,605.90 and 163,910.60

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Solution

The fourth proportional to 193,070.60, 289,605.90 and 163,910.60 is: 245,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,070.60 : 289,605.90 = 163,910.60 : x
  2. Step 2: Convert to fraction form
    193,070.60/289,605.90 = 163,910.60/x
  3. Step 3: Cross multiply
    193,070.60x = 289,605.90 × 163,910.60
  4. Step 4: Simplify right side
    193,070.60x = 47,469,476,832.54
  5. Step 5: Solve for x
    x = 47,469,476,832.54/193,070.60
  6. Step 6: Final answer
    x = 245,865.90

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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.