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Finding the Fourth Proportional to 250,636.86, 375,949.03 and 73,145.40

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Solution

The fourth proportional to 250,636.86, 375,949.03 and 73,145.40 is: 109,716.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,636.86 : 375,949.03 = 73,145.40 : x
  2. Step 2: Convert to fraction form
    250,636.86/375,949.03 = 73,145.40/x
  3. Step 3: Cross multiply
    250,636.86x = 375,949.03 × 73,145.40
  4. Step 4: Simplify right side
    250,636.86x = 27,498,942,178.96
  5. Step 5: Solve for x
    x = 27,498,942,178.96/250,636.86
  6. Step 6: Final answer
    x = 109,716.27

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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.