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Finding the Fourth Proportional to 262,022.40, 393,033.60 and 75,009.60

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Solution

The fourth proportional to 262,022.40, 393,033.60 and 75,009.60 is: 112,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,022.40 : 393,033.60 = 75,009.60 : x
  2. Step 2: Convert to fraction form
    262,022.40/393,033.60 = 75,009.60/x
  3. Step 3: Cross multiply
    262,022.40x = 393,033.60 × 75,009.60
  4. Step 4: Simplify right side
    262,022.40x = 29,481,293,122.56
  5. Step 5: Solve for x
    x = 29,481,293,122.56/262,022.40
  6. Step 6: Final answer
    x = 112,514.40

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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.