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Finding the Fourth Proportional to 100,390.08, 150,568.97 and 29,296.04

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Solution

The fourth proportional to 100,390.08, 150,568.97 and 29,296.04 is: 43,939.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,390.08 : 150,568.97 = 29,296.04 : x
  2. Step 2: Convert to fraction form
    100,390.08/150,568.97 = 29,296.04/x
  3. Step 3: Cross multiply
    100,390.08x = 150,568.97 × 29,296.04
  4. Step 4: Simplify right side
    100,390.08x = 4,411,073,668.55
  5. Step 5: Solve for x
    x = 4,411,073,668.55/100,390.08
  6. Step 6: Final answer
    x = 43,939.34

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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.