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Finding the Fourth Proportional to 192,504.72, 288,619.92 and 74,076.24

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Solution

The fourth proportional to 192,504.72, 288,619.92 and 74,076.24 is: 111,061.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,504.72 : 288,619.92 = 74,076.24 : x
  2. Step 2: Convert to fraction form
    192,504.72/288,619.92 = 74,076.24/x
  3. Step 3: Cross multiply
    192,504.72x = 288,619.92 × 74,076.24
  4. Step 4: Simplify right side
    192,504.72x = 21,379,878,462.70
  5. Step 5: Solve for x
    x = 21,379,878,462.70/192,504.72
  6. Step 6: Final answer
    x = 111,061.58

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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.