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Finding the Fourth Proportional to 192,364.87, 288,456.49 and 112,425.77

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Solution

The fourth proportional to 192,364.87, 288,456.49 and 112,425.77 is: 168,585.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,364.87 : 288,456.49 = 112,425.77 : x
  2. Step 2: Convert to fraction form
    192,364.87/288,456.49 = 112,425.77/x
  3. Step 3: Cross multiply
    192,364.87x = 288,456.49 × 112,425.77
  4. Step 4: Simplify right side
    192,364.87x = 32,429,942,999.75
  5. Step 5: Solve for x
    x = 32,429,942,999.75/192,364.87
  6. Step 6: Final answer
    x = 168,585.58

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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.