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Finding the Fourth Proportional to 192,651.74, 289,060.30 and 74,406.12

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Solution

The fourth proportional to 192,651.74, 289,060.30 and 74,406.12 is: 111,641.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,651.74 : 289,060.30 = 74,406.12 : x
  2. Step 2: Convert to fraction form
    192,651.74/289,060.30 = 74,406.12/x
  3. Step 3: Cross multiply
    192,651.74x = 289,060.30 × 74,406.12
  4. Step 4: Simplify right side
    192,651.74x = 21,507,855,369.04
  5. Step 5: Solve for x
    x = 21,507,855,369.04/192,651.74
  6. Step 6: Final answer
    x = 111,641.12

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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.