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Finding the Fourth Proportional to 192,042.20, 287,407.20 and 168,422.60

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Solution

The fourth proportional to 192,042.20, 287,407.20 and 168,422.60 is: 252,058.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,042.20 : 287,407.20 = 168,422.60 : x
  2. Step 2: Convert to fraction form
    192,042.20/287,407.20 = 168,422.60/x
  3. Step 3: Cross multiply
    192,042.20x = 287,407.20 × 168,422.60
  4. Step 4: Simplify right side
    192,042.20x = 48,405,867,882.72
  5. Step 5: Solve for x
    x = 48,405,867,882.72/192,042.20
  6. Step 6: Final answer
    x = 252,058.49

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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.