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Finding the Fourth Proportional to 192,559.75, 288,981.50 and 91,358.17

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Solution

The fourth proportional to 192,559.75, 288,981.50 and 91,358.17 is: 137,104.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,559.75 : 288,981.50 = 91,358.17 : x
  2. Step 2: Convert to fraction form
    192,559.75/288,981.50 = 91,358.17/x
  3. Step 3: Cross multiply
    192,559.75x = 288,981.50 × 91,358.17
  4. Step 4: Simplify right side
    192,559.75x = 26,400,821,003.86
  5. Step 5: Solve for x
    x = 26,400,821,003.86/192,559.75
  6. Step 6: Final answer
    x = 137,104.57

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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.