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Finding the Fourth Proportional to 193,150.40, 289,725.60 and 162,046.40

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Solution

The fourth proportional to 193,150.40, 289,725.60 and 162,046.40 is: 243,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,150.40 : 289,725.60 = 162,046.40 : x
  2. Step 2: Convert to fraction form
    193,150.40/289,725.60 = 162,046.40/x
  3. Step 3: Cross multiply
    193,150.40x = 289,725.60 × 162,046.40
  4. Step 4: Simplify right side
    193,150.40x = 46,948,990,467.84
  5. Step 5: Solve for x
    x = 46,948,990,467.84/193,150.40
  6. Step 6: Final answer
    x = 243,069.60

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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.