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Finding the Fourth Proportional to 192,007.20, 288,010.80 and 132,826.40

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Solution

The fourth proportional to 192,007.20, 288,010.80 and 132,826.40 is: 199,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,007.20 : 288,010.80 = 132,826.40 : x
  2. Step 2: Convert to fraction form
    192,007.20/288,010.80 = 132,826.40/x
  3. Step 3: Cross multiply
    192,007.20x = 288,010.80 × 132,826.40
  4. Step 4: Simplify right side
    192,007.20x = 38,255,437,725.12
  5. Step 5: Solve for x
    x = 38,255,437,725.12/192,007.20
  6. Step 6: Final answer
    x = 199,239.60

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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.