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Finding the Fourth Proportional to 173,209.20, 259,813.80 and 162,711.60

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Solution

The fourth proportional to 173,209.20, 259,813.80 and 162,711.60 is: 244,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,209.20 : 259,813.80 = 162,711.60 : x
  2. Step 2: Convert to fraction form
    173,209.20/259,813.80 = 162,711.60/x
  3. Step 3: Cross multiply
    173,209.20x = 259,813.80 × 162,711.60
  4. Step 4: Simplify right side
    173,209.20x = 42,274,719,100.08
  5. Step 5: Solve for x
    x = 42,274,719,100.08/173,209.20
  6. Step 6: Final answer
    x = 244,067.40

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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.