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Finding the Fourth Proportional to 192,020.80, 288,031.20 and 164,027.20

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Solution

The fourth proportional to 192,020.80, 288,031.20 and 164,027.20 is: 246,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,020.80 : 288,031.20 = 164,027.20 : x
  2. Step 2: Convert to fraction form
    192,020.80/288,031.20 = 164,027.20/x
  3. Step 3: Cross multiply
    192,020.80x = 288,031.20 × 164,027.20
  4. Step 4: Simplify right side
    192,020.80x = 47,244,951,248.64
  5. Step 5: Solve for x
    x = 47,244,951,248.64/192,020.80
  6. Step 6: Final answer
    x = 246,040.80

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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.