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Finding the Fourth Proportional to 192,665.70, 288,998.55 and 192,665.70

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Solution

The fourth proportional to 192,665.70, 288,998.55 and 192,665.70 is: 288,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,665.70 : 288,998.55 = 192,665.70 : x
  2. Step 2: Convert to fraction form
    192,665.70/288,998.55 = 192,665.70/x
  3. Step 3: Cross multiply
    192,665.70x = 288,998.55 × 192,665.70
  4. Step 4: Simplify right side
    192,665.70x = 55,680,107,934.74
  5. Step 5: Solve for x
    x = 55,680,107,934.74/192,665.70
  6. Step 6: Final answer
    x = 288,998.55

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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.