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Finding the Fourth Proportional to 192,021.80, 288,032.70 and 132,924.20

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Solution

The fourth proportional to 192,021.80, 288,032.70 and 132,924.20 is: 199,386.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,021.80 : 288,032.70 = 132,924.20 : x
  2. Step 2: Convert to fraction form
    192,021.80/288,032.70 = 132,924.20/x
  3. Step 3: Cross multiply
    192,021.80x = 288,032.70 × 132,924.20
  4. Step 4: Simplify right side
    192,021.80x = 38,286,516,221.34
  5. Step 5: Solve for x
    x = 38,286,516,221.34/192,021.80
  6. Step 6: Final answer
    x = 199,386.30

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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.