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Finding the Fourth Proportional to 192,404.09, 288,611.10 and 91,178.39

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Solution

The fourth proportional to 192,404.09, 288,611.10 and 91,178.39 is: 136,769.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,404.09 : 288,611.10 = 91,178.39 : x
  2. Step 2: Convert to fraction form
    192,404.09/288,611.10 = 91,178.39/x
  3. Step 3: Cross multiply
    192,404.09x = 288,611.10 × 91,178.39
  4. Step 4: Simplify right side
    192,404.09x = 26,315,096,155.66
  5. Step 5: Solve for x
    x = 26,315,096,155.66/192,404.09
  6. Step 6: Final answer
    x = 136,769.94

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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.