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Finding the Fourth Proportional to 193,074.60, 289,611.90 and 163,914.60

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Solution

The fourth proportional to 193,074.60, 289,611.90 and 163,914.60 is: 245,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,074.60 : 289,611.90 = 163,914.60 : x
  2. Step 2: Convert to fraction form
    193,074.60/289,611.90 = 163,914.60/x
  3. Step 3: Cross multiply
    193,074.60x = 289,611.90 × 163,914.60
  4. Step 4: Simplify right side
    193,074.60x = 47,471,618,743.74
  5. Step 5: Solve for x
    x = 47,471,618,743.74/193,074.60
  6. Step 6: Final answer
    x = 245,871.90

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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.