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Finding the Fourth Proportional to 192,980.91, 289,389.33 and 79,050.18

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Solution

The fourth proportional to 192,980.91, 289,389.33 and 79,050.18 is: 118,541.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,980.91 : 289,389.33 = 79,050.18 : x
  2. Step 2: Convert to fraction form
    192,980.91/289,389.33 = 79,050.18/x
  3. Step 3: Cross multiply
    192,980.91x = 289,389.33 × 79,050.18
  4. Step 4: Simplify right side
    192,980.91x = 22,876,278,626.58
  5. Step 5: Solve for x
    x = 22,876,278,626.58/192,980.91
  6. Step 6: Final answer
    x = 118,541.67

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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.